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Table of Contents

Novell IPX Commands

Novell IPX Commands

Novell Internet Packet Exchange (IPX) is derived from the Xerox Network Systems (XNS) Internet Datagram Protocol (IDP). One major difference between IPX and XNS is that they do not always use the same Ethernet encapsulation format. A second difference is that IPX uses Novell's proprietary Service Advertising Protocol (SAP) to advertise special network services.

Our implementation of Novell's IPX protocol has been certified as providing full IPX router functionality.


Note One or more of the commands that previously appeared this chapter have been replaced by new commands. See the Configuration Fundamentals Command Reference for command information. The old commands continue to perform their normal function in the current release, but support for them will cease in future releases.

Use the commands in this chapter to configure and monitor Novell IPX networks. For IPX configuration information and examples, refer to the "Configuring Novell IPX" chapter in the Network Protocols Configuration Guide, Part 2.


Note For all commands that previously had the keyword novell, this keyword has been changed to ipx. However, you can still use the keyword novell in all commands.

access-list (extended)

To define an extended Novell IPX access list, use the extended version of the access-list global configuration command. To remove an extended access list, use the no form of this command.

access-list access-list-number {deny | permit} protocol [source-network][[[.source-node]
source-node-mask] | [.source-node source-network-mask.source-node-mask]]
[
source-socket] [destination.network][[[.destination-node] destination-node-mask] |
[
.destination-node destination-network-mask.destination-nodemask]] [destination-socket]
[log]

no access-list access-list-number {deny | permit} protocol [source-network][[[.source-node]
source-node-mask] | [.source-node source-network-mask.source-node-mask]]
[
source-socket] [destination.network][[[.destination-node] destination-node-mask] |
[
.destination-node destination-network-mask.destination-nodemask]] [destination-socket]
[
log]

Syntax Description
access-list-number Number of the access list. This is a decimal number from 900 to 999.
deny Denies access if the conditions are matched.
permit Permits access if the conditions are matched.
protocol Name or number (decimal) of an IPX protocol type. This is sometimes referred to as the packet type. Table 45 in the "Usage Guidelines" section lists some IPX protocol names and numbers.
source-network (Optional) Number of the network from which the packet is being sent. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFE. A network number of 0 matches the local network. A network number of -1 matches all networks.

You do not need to specify leading zeros in the network number; for example, for the network number 000000AA, you can enter AA.

.source-node (Optional) Node on source-network from which the packet is being sent. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx).
source-network-mask. (Optional) Mask to be applied to source-network. This is an eight-digit hexadecimal mask. Place ones in the bit positions you want to mask.

The mask must immediately be followed by a period, which must in turn immediately be followed by source-node-mask.

source-node-mask (Optional) Mask to be applied to source-node. This is a 48-bit value represented as a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx). Place ones in the bit positions you want to mask.
source-socket Socket name or number (hexadecimal) from which the packet is being sent. Table 45 in the "Usage Guidelines" section lists some IPX socket names and numbers.
destination.network (Optional) Number of the network to which the packet is being sent. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFE. A network number of 0 matches the local network. A network number of -1 matches all networks.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

.destination-node (Optional) Node on destination-network to which the packet is being sent. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx).
destination-network-mask. (Optional) Mask to be applied to destination-network. This is an eight-digit hexadecimal mask. Place ones in the bit positions you want to mask.

The mask must immediately be followed by a period, which must in turn immediately be followed by destination-node-mask.

destination-nodemask (Optional) Mask to be applied to destination-node. This is a 48-bit value represented as a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx). Place ones in the bit positions you want to mask.
destination-socket (Optional) Socket name or number (hexadecimal) to which the packet is being sent. Table 45 in the "Usage Guidelines" section lists some IPX socket names and numbers.
log (Optional) Logs IPX access control list violations whenever a packet matches a particular access list entry. The information logged includes source address, destination address, source socket, destination socket, protocol type, and action taken (permit/deny).
Default

No access lists are predefined.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0. The log keyword first appeared in Cisco IOS Relese 11.2.

Extended IPX access lists filter on protocol type. All other parameters are optional.

If a network mask is used, all other fields are required.

Use the ipx access-group command to assign an access list to an interface. You can apply only one extended or one standard access list to an interface. The access list filters all outgoing packets on the interface.


Note For some versions of NetWare, the protocol type field is not a reliable indicator of the type of packet encapsulated by the IPX header. In these cases, use the source and destination socket fields to make this determination. For additional information, contact Novell.

Table 45 lists some IPX protocol names and numbers. Table 45 lists some IPX socket names and numbers. For additional information about IPX protocol numbers and socket numbers, contact Novell.


Table  45: Some IPX Protocol Names and Numbers
IPX Protocol Number (Decimal) IPX Protocol Name Protocol (Packet Type)
-1 any Wildcard; matches any packet type in 900 lists
0 Undefined; refer to the socket number to determine the packet type
1 rip Routing Information Protocol (RIP)
4 sap Service Advertising Protocol (SAP)
5 spx Sequenced Packet Exchange (SPX)
17 ncp NetWare Core Protocol (NCP)
20 netbios IPX NetBIOS

Table 46: Some IPX Socket Names and Numbers
IPX Socket Number (Hexadecimal) IPX Socket Name Socket
0 all All sockets, wildcard used to match all sockets
2 cping Cisco IPX ping packet
451 ncp NetWare Core Protocol (NCP) process
452 sap Service Advertising Protocol (SAP) process
453 rip Routing Information Protocol (RIP) process
455 netbios Novell NetBIOS process
456 diagnostic Novell diagnostic packet
457 Novell serialization socket
4000-7FFF Dynamic sockets; used by workstations for interaction with file servers and other network servers
8000-FFFF Sockets as assigned by Novell, Inc.
85BE eigrp IPX Enhanced Interior Gateway Routing Protocol (Enhanced IGRP)
9001 nlsp NetWare Link Services Protocol
9086 nping Novell standard ping packet

To delete an extended access list, specify the minimum number of keywords and arguments needed to delete the proper access list. For example, to delete the entire access list, use the following command:

no access-list access--lst-number

To delete the access list for a specific protocol, use the following command:

no access-list access-list-number {deny | permit} protocol
Examples

The following example denies access to all RIP packets from the RIP process socket on source network 1 that are destined for the RIP process socket on network 2. It permits all other traffic. This example uses protocol and socket names rather than hexadecimal numbers.

access-list  900  deny  -1 1 rip 2 rip
access-list  900  permit  -1 

The following example permits type 2 packets from any socket from host 10.0000.0C01.5234 to access any sockets on any node on networks 1000 through 100F. It denies all other traffic (with an implicit deny all):


Note This type is chosen only as an example. The actual type to use depends on the specific application.
access-list 910 permit 2 10.0000.0C01.5234 0000.0000.0000 0 
  1000.0000.0000.0000 F.FFFF.FFFF.FFFF 0
Related Commands

A dagger (+) indicates that the command is documented outside this chapter.

access-list (standard)
ipx access-group
ipx input-network-filter
ipx output-network-filter
ipx router-filter
priority-list protocol
+

access-list (NLSP route aggregation filtering)

To define an access list that denies or permits area addresses that summarize routes, use the NLSP route aggregation version of the access-list global configuration command. To remove an NLSP route aggregation access list, use the no form of this command.

access-list access-list-number {deny | permit} network network-mask [ticks ticks]
[
area-count area-count]

no access-list access-list-number {deny | permit} network network-mask [ticks ticks]
[
area-count area-count]

Syntax Description
access-list-number Number of the access list. This is a decimal number from 1200 to 1299.
deny Denies redistribution of explicit routes if the conditions are matched. If you have enabled route summarization with route-aggregation command, the router redistributes an aggregated route instead.
permit Permits redistribution of explicit routes if the conditions are matched.
network Network number to summarize. An IPX network number is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFE. A network number of 0 matches the local network. A network number of -1 matches all networks.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

network-mask Specifies the portion of the network address that is common to all addresses in the route summary. The high-order bits of network-mask must be contiguous Fs, while the low-order bits must be contiguous zeros (0). An arbitrary mix of Fs and 0s is not permitted.
ticks ticks (Optional) Metric assigned to the route summary. The default is 1 tick.
area-count area-count (Optional) Maximum number of NLSP areas to which the route summary can be redistributed. The default is 6 areas.
Default

No access lists are predefined.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Use the NLSP route aggregation access list in the following situations:

Use the access list to instruct the router to redistribute an aggregated route instead of the explicit route. The access list also contains a "permit all" statement that instructs the router to redistribute explicit routes that are not subsumed by a route summary.

Note NLSP version 1.1 routers refer to routers that support the route aggregation feature, while NLSP version 1.0 routers refer to routers that do not.
Example

The following example uses NLSP route aggregation access lists to redistribute routes learned from RIP to NLSP area1. Routes learned via RIP are redistributed into NLSP area1. Any routes learned via RIP that are subsumed by aaaa0000 ffff0000 are not redistributed. An address summary is generated instead.

ipx routing
ipx internal-network 2000
interface ethernet 1 
ipx network 1001
ipx nlsp area1 enable
interface ethernet 2
ipx network 2001
access-list 1200 deny aaaa0000 ffff0000
access-list 1200 permit -1
ipx router nlsp area
area-address 1000 fffff000
route-aggregation
redistribute rip access-list 1200
Related Commands

area-address
ipx nlsp enable
ipx router
redistribute

access-list (SAP filtering)

To define an access list for filtering Service Advertising Protocol (SAP) requests, use the SAP filtering form of the access-list global configuration command. To remove the access list, use the no form of this command.

access-list access-list-number {deny | permit} network[.node] [network-mask.node-mask]
[
service-type [server-name]]
no access-list access-list-number {deny | permit} network[.node] [network-mask.node-mask]
[
service-type [server-name]]

Syntax Description
access-list-number Number of the SAP access list. This is a decimal number from 1000 to 1099.
deny Denies access if the conditions are matched.
permit Permits access if the conditions are matched.
network Network number. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFE. A network number of 0 matches the local network. A network number of -1 matches all networks.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

.node (Optional) Node on network. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx).
network-mask.node-mask (Optional) Mask to be applied to network and node. Place ones in the bit positions to be masked.
service-type (Optional) Service type on which to filter. This is a hexadecimal number. A value of 0 means all services.

Table 47 in the "Usage Guidelines" section lists examples of service types.

server-name (Optional) Name of the server providing the specified service type. This can be any contiguous string of printable ASCII characters. Use double quotation marks (" ") to enclose strings containing embedded spaces. You can use an asterisk (*) at the end of the name as a wildcard to match one or more trailing characters.
Default

No access lists are predefined.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

When configuring SAP filters for NetWare 3.11 and later servers, use the server's internal network and node number (the node number is always 0000.0000.0001) as its address in the access-list command. Do not use the network.node address of the particular interface board.

Table 47 lists some sample IPX SAP types. For more information about SAP types, contact Novell. Note that in the filter (specified by the service-type argument), we define a value of 0 to filter all SAP services. If, however, you receive a SAP packet with a SAP type of 0, this indicates an unknown service.


Table  47: Sample IPX SAP Services
Service Type (Hexadecimal) Description
1 User
2 User group
3 Print server queue
4 File server
5 Job server
7 Print server
9 Archive server
A Queue for job servers
21 Network Application Support Systems Network Architecture (NAS SNA) gateway
2D Time Synchronization value-added process (VAP)
2E Dynamic SAP
47 Advertising print server
4B Btrieve VAP 5.0
4C SQL VAP
7A TES--NetWare for Virtual Memory System (VMS)
98 NetWare access server
9A Named Pipes server
9E Portable NetWare--UNIX
107 RCONSOLE
111 Test server
166 NetWare management (Novell's Network Management Station [NMS])
26A NetWare management (NMS console)

To delete a SAP access list, specify the minimum number of keywords and arguments needed to delete the proper access list. For example, to delete the entire access list, use the following command:

no access-list access-list-number

To delete the access list for a specific network, use the following command:

no access-list access-list-number {deny | permit} network
Example

The following access list blocks all access to a file server (service Type 4) on the directly attached network by resources on other Novell networks, but allows access to all other available services on the interface:

access-list 1001 deny -1 4
access-list 1001 permit -1
Related Commands

A dagger (+) indicates that the command is documented outside this chapter.

ipx input-sap-filter
ipx output-gns-filter
ipx output-sap-filter
ipx router-sap-filter
priority-list protocol
+

access-list (standard)

To define a standard IPX access list, use the standard version of the access-list global configuration command. To remove a standard access list, use the no form of this command.

access-list access-list-number {deny | permit} source-network[.source-node
[source-node-mask]] [destination-network[.destination-node [destination-node-mask]]]
no access-list access-list-number {deny | permit} source-network[.source-node
[source-node-mask]] [destination-network[.destination-node [destination-node-mask]]]

Syntax Description
access-list-number Number of the access list. This is a decimal number from 800 to 899.
deny Denies access if the conditions are matched.
permit Permits access if the conditions are matched.
source-network Number of the network from which the packet is being sent. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFE. A network number of 0 matches the local network. A network number of -1 matches all networks.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

.source-node (Optional) Node on source-network from which the packet is being sent. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx).
source-node-mask (Optional) Mask to be applied to source-node. This is a 48-bit value represented as a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx). Place ones in the bit positions you want to mask.
destination-network (Optional) Number of the network to which the packet is being sent. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFE. A network number of 0 matches the local network. A network number of -1 matches all networks.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

.destination-node (Optional) Node on destination-network to which the packet is being sent. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx).
destination-node-mask (Optional) Mask to be applied to destination-node. This is a 48-bit value represented as a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx). Place ones in the bit positions you want to mask.
Default

No access lists are predefined.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Standard IPX access lists filter on the source network. All other parameters are optional.

Use the ipx access-group command to assign an access list to an interface. You can apply only one extended or one standard access list to an interface. The access list filters all outgoing packets on the interface.

To delete a standard access list, specify the minimum number of keywords and arguments needed to delete the proper access list. For example, to delete the entire access list, use the following command:

no access-list access-list-number

To delete the access list for a specific network, use the following command:

no access-list access-list-number {deny | permit} source-network
Examples

The following example denies access to traffic from all IPX networks (-1) to destination network 2:

access-list 800 deny -1 2

The following example denies access to all traffic from IPX address 1.0000.0c00.1111:

access-list 800 deny 1.0000.0c00.1111

The following example denies access from all nodes on network 1 that have a source address beginning with 0000.0c:

access-list 800 deny 1.0000.0c00.0000 0000.00ff.ffff

The following example denies access from source address 1111.1111.1111 on network 1 to destination address 2222.2222.2222 on network 2:

access-list 800 deny 1.1111.1111.1111 0000.0000.0000 2.2222.2222.2222 0000.0000.0000
or
access-list 800 deny 1.1111.1111.1111 2.2222.2222.2222
Related Commands

A dagger (+) indicates that the command is documented outside this chapter.

access-list (extended)
ipx access-group
ipx input-network-filter
ipx output-network-filter
ipx router-filter
priority-list protocol
+

area-address

To define a set of network numbers to be part of the current NLSP area, use the area-address router configuration command. To remove a set of network numbers from the current NLSP area, use the no form of this command.

area-address address mask
no area-address address mask

Syntax Description
address Network number prefix. This is a 32-bit hexadecimal number.
mask Mask that defines the length of the network number prefix. This is a 32-bit hexadecimal number.
Default

No area address is defined by default.

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

You must configure at least one area address before NLSP will operate.

The area-address command defines a prefix that includes all networks in the area. This prefix allows a single route to an area address to substitute for a longer list of networks.

All networks on which NLSP is enabled must fall under the area address prefix. This configuration is for future compatibility. When Level 2 NLSP becomes available, the only route advertised for the area will be the area address prefix (the prefix represents all networks within the area).

All routers in an NLSP area must be configured with a common area address, or they will form separate areas. You can configure up to three area addresses on the router.

The area address must have zero bits in all bit positions where the mask has zero bits. The mask must consist of only left-justified contiguous one bits.

Examples

The following example defines an area address that includes networks AAAABBC0 through AAAABBDF:

area-address AAAABBC0 FFFFFFE0

The following example defines an area address that includes all networks:

area-address 0 0
Related Command

ipx router nlsp

clear ipx accounting

To delete all entries in the accounting database when IPX accounting is enabled, use the clear ipx accounting EXEC command.

clear ipx accounting [checkpoint]
Syntax Description
checkpoint (Optional) Clears the checkpointed database.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Specifying the clear ipx accounting command with no keywords deletes all entries in the active database.

You can also delete all entries in the checkpointed database by issuing the clear ipx accounting command twice in succession.

Example

The following example clears all entries in the active database:

clear ipx accounting
Related Commands

ipx accounting
ipx accounting-list
ipx accounting-threshold
ipx accounting-transits
show ipx accounting

clear ipx cache

To delete entries from the IPX fast-switching cache, use the clear ipx cache EXEC command.

clear ipx cache
Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The clear ipx cache command clears entries used for fast switching, autonomous switching, and silicon switching engine (SSE) fast switching.

Example

The following example deletes all entries from the IPX fast-switching cache:

clear ipx cache
Related Commands

ipx route-cache
show ipx cache

clear ipx nhrp

To clear all dynamic entries from the Next Hop Resolution Protocol (NHRP) cache, use the clear ipx nhrp EXEC command.

clear ipx nhrp
Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command does not clear any static (configured) IPX-to-NBMA address mappings from the NHRP cache.

Example

The following example clears all dynamic entries from the NHRP cache for the interface:

clear ipx nhrp 
Related Command

show ipx nhrp

clear ipx nlsp neighbors

To delete all NetWare Link Services Protocol (NLSP) adjacencies from the Cisco IOS software's adjacency database, use the clear ipx nlsp neighbors EXEC command.

clear ipx nlsp [tag] neighbors
Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Deleting all entries from the adjacency database forces all routers in the area to perform the shortest path first (SPF) calculation.

When you specify an NLSP tag, the router clears all NLSP adjacencies discovered by that NLSP process. An NLSP process is a router's databases working together to manage route information about an area. NLSP version 1.0 routers are always in the same area. Each router has its own adjacencies, link-state, and forwarding databases. These databases operate collectively as a single process to discover, select, and maintain route information about the area. NLSP version 1.1 routers that exist within a single area also use a single process.

NLSP version 1.1 routers that interconnect multiple areas use multiple processes to discover, select, and maintain route information about the areas they interconnect. These routers manage an adjacencies, link-state, and area address database for each area to which they attach. Collectively, these databases are still referred to as a process. The forwarding database is shared among processes within a router. The sharing of entries in the forwarding database is automatic when all processes interconnect NLSP version 1.1 areas.

Configure multiple NLSP processes when a router interconnects multiple NLSP areas.


Note NLSP version 1.1 routers refer to routers that support the route aggregation feature, while NLSP version 1.0 routers refer to routers that do not.
Examples

The following example deletes all NLSP adjacencies from the adjacency database:

clear ipx nlsp neighbors

The following example deletes the NLSP adjacencies for process area2:

clear ipx nlsp area2 neighbors
Related Commands

ipx router nlsp
spf-interval

clear ipx route

To delete routes from the IPX routing table, use the clear ipx route EXEC command.

clear ipx route {network [network-mask] | default | *}
Syntax Description
network Number of the network whose routing table entry you want to delete. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD. You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.
network-mask (Optional) Specifies the portion of the network address that is common to all addresses in an NLSP route summary. When used with the network argument, it specifies the an NLSP route summary to clear.

The high-order bits of network-mask must be contiguous Fs, while the low-order bits must be contiguous zeros (0). An arbitrary mix of Fs and 0s is not permitted.

default Deletes the default route from the routing table.
* Deletes all routes in the routing table.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0. The network-mask argument and default keyword first appeared in Cisco IOS Release 11.1.

After you use the clear ipx route command, RIP/SAP general requests are issued on all IPX interfaces.

For routers configured for NLSP route aggregation, use this command to clear an aggregated route from the routing table.

Examples

The following example clears the entry for network 3 from the IPX routing table:

clear ipx route 3

The following example clears a route summary entry from the IPX routing table:

clear ipx route ccc00000 fff00000
Related Command

show ipx route

clear ipx sse

To have the Cisco 7000 series Route Processor recompute the entries in the IPX SSE fast-switching cache, use the clear ipx sse EXEC command.

clear ipx sse
Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Recomputing the entries in the SSE fast-switching cache of the rendezvous point (RP) also updates the fast-switching cache of the Silicon Switch Processor (SSP).

Example

The following example recomputes the entries in the IPX SSE fast-switching cache:

clear ipx sse
Related Command

ipx route-cache

clear sse

To reinitialize the Route Processor on the Cisco 7000 series, use the clear sse EXEC command.

clear sse
Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The silicon switching engine (SSE) is on the Silicon Switch Processor (SSP) board in the Cisco 7000 series.

Example

The following example causes the route processor to be reinitialized:

clear sse

distribute-list in

To filter networks received in updates, use the distribute-list in router configuration command. To change or cancel the filter, use the no form of this command.

distribute-list access-list-number in [interface-name]
no distribute-list
access-list-number in [interface-name]

Syntax Description
access-list-number Standard IPX access list number in the range 800 to 899 or NLSP access list number in the range 1200 to 1299. The list explicitly specifies which networks are to be received and which are to be suppressed.
in Applies the access list to incoming routing updates.
interface-name (Optional) Interface on which the access list should be applied to incoming updates. If no interface is specified, the access list is applied to all incoming updates.
Default

Disabled

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Example

The following example causes only two networks--network 2 and network 3--to be accepted by an Enhanced IGRP routing process:

access-list 800 permit 2
access-list 800 permit 3
access-list 800 deny -1
!
ipx router eigrp 100
network 3
distribute-list 800 in
Related Commands

access-list (NLSP route aggregation filtering)
access-list (standard)
distribute-list out
redistribute

distribute-list out

To suppress networks from being advertised in updates, use the distribute-list out router configuration command. To cancel this function, use the no form of this command.

distribute-list access-list-number out [interface-name | routing-process]
no distribute-list
access-list-number out [interface-name | routing-process]

Syntax Description
access-list-number Standard IPX access list number in the range 800 to 899 or NLSP access list number in the range 1200 to 1299. The list explicitly specifies which networks are to be sent and which are to be suppressed in routing updates.
out Applies the access list to outgoing routing updates.
interface-name (Optional) Interface on which the access list should be applied to outgoing updates. If no interface is specified, the access list is applied to all outgoing updates.
routing-process (Optional) Name of a particular routing process as follows:

· eigrp autonomous-system-number

· rip

· nlsp [tag]

Default

Disabled

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

When redistributing networks, a routing process name can be specified as an optional trailing argument to the distribute-list out command. This causes the access list to be applied to only those routes derived from the specified routing process. After the process-specific access list is applied, any access list specified by a distribute-list out command without a process name argument is applied. Addresses not specified in the distribute-list out command are not advertised in outgoing routing updates.

Example

The following example causes only one network--network 3--to be advertised by an Enhanced IGRP routing process:

access-list 800 permit 3
access-list 800 deny -1
!
ipx router eigrp 100
network 3
distribute-list 800 out
Related Commands

access-list (NLSP route aggregation filtering)
access-list (standard)
distribute-list in
redistribute

distribute-sap-list in

To filter services received in updates, use the distribute-list in router configuration command. To change or cancel the filter, use the no form of this command.

distribute-sap-list access-list-number in [interface-name]
no distribute-sap-list
access-list-number in [interface-name]

Syntax Description
access-list-number SAP access list number in the range 1000 to 1099. The list explicitly specifies which services are to be received and which are to be suppressed.
in Applies the access list to incoming routing updates.
interface-name (Optional) Interface on which the access list should be applied to incoming updates. If no interface is specified, the access list is applied to all incoming updates.
Default

Disabled

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Example

In the following example, the router redistributes Enhanced IGRP into NLSP area1. Only services for network 2 and 3 are accepted by the NLSP routing process.

access-list 1000 permit 2
access-list 1000 permit 3
access-list 1000 deny -1
!
ipx router nlsp area1
redistribute eigrp
distribute-sap-list 1000 in
Related Commands

access-list (SAP filtering)
distribute-list out
redistribute

distribute-sap-list out

To suppress services from being advertised in SAP updates, SAP (Service Advertising Protocol) use the distribute-sap-list out router configuration command. To cancel this function, use the no form of this command.

distribute-sap-list access-list-number out [interface-name | routing-process]
no distribute-sap-list
access-list-number out [interface-name | routing-process]
Syntax Description
access-list-number SAP access list number in the range 1000 to 1099. The list explicitly specifies which networks are to be sent and which are to be suppressed in routing updates.
out Applies the access list to outgoing routing updates.
interface-name (Optional) Interface on which the access list should be applied to outgoing updates. If no interface is specified, the access list is applied to all outgoing updates.
routing-process (Optional) Name of a particular routing process as follows:

· eigrp autonomous-system-number

· rip

· nlsp [tag]

Default

Disabled

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

When redistributing networks, a routing process name can be specified as an optional trailing argument to the distribute-sap-list out command. This causes the access list to be applied to only those routes derived from the specified routing process. After the process-specific access list is applied, any access list specified by a distribute-sap-list out command without a process name argument is applied. Addresses not specified in the distribute-sap-list out command are not advertised in outgoing routing updates.

Example

The following example causes only services from network 3 to be advertised by an Enhanced IGRP routing process:

access-list 1010 permit 3
access-list 1010 deny -1
!
ipx router eigrp 100
network 3
distribute-sap-list 1010 out
Related Commands

access-list (SAP filtering)
distribute-sap-list in
redistribute

ipx access-group

To apply generic input and output filters to an interface, use ipx access-group interface configuration command. To remove filters, use the no form of this command.

ipx access-group access-list-number [in | out]
no ipx access-group
access-list-number [in | out]

Syntax Description
access-list-number Number of the access list. For standard access lists, access-list-number is a decimal number from 800 to 899. For extended access lists, access-list-number is a decimal number from 900 to 999.
in Filters inbound packets. All incoming packets defined with either standard or extended access lists are filtered by the entries in this access list.
out Filter outbound packets. All outgoing packets defined with either standard or extended access lists and forwarded through the interface are filtered by the entries in this access list. This is the default when you do not specify an input (in) or output (out) keyword in the command line.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Generic filters control which data packets an interface receives or sends out based on the packet's source and destination addresses, IPX protocol type, and source and destination socket numbers. You use the standard access-list and extended access-list commands to specify the filtering conditions.

You can apply only one input filter and one output filter per interface or subinterface.

When you do not specify an input (in) or output (out) filter in the command line, the default is an output filter.

You cannot configure an output filter on an interface where autonomous switching is already configured. Similarly, you cannot configure autonomous switching on an interface where an output filter is already present. You cannot configure an input filter on an interface if autonomous switching is already configured on any interface. Likewise, you cannot configure input filters if autonomous switching is already enabled on any interface.

Examples

In the following example, access list 801 is applied to Ethernet interface 1. Because the command line does not specify an input filter or output filter with the keywords in or out, the software assumes that it is an output filter.

interface ethernet 1
ipx access-group 801

In the following example, access list 901 is applied to Ethernet interface 0. The access list is an input filter access list as specified by the keyword in.

interface ethernet 0
ipx access-group 901 in

To remove the input access list filter in the previous example, you must specify the in keyword when you use the no form of the command. The following example correctly removes the access list:

interface ethernet 0
no ipx access-group 901 in
Related Commands

A dagger (+) indicates that the command is documented outside this chapter.

access-list (extended)
access-list (standard)
priority-list protocol
+

ipx accounting

To enable IPX accounting, use the ipx accounting interface configuration command. To disable IPX accounting, use the no form of this command.

ipx accounting
no ipx accounting

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

IPX accounting allows you to collect information about IPX packets and the number of bytes that are switched through the Cisco IOS software. You collect information based on the source and destination IPX address. Accounting tracks only IPX traffic that is passing out of the router; it does not track traffic generated by or terminating at this device.

IPX accounting statistics will be accurate even if IPX fast switching is enabled or if IPX access lists are being used. However, IPX accounting does not keep statistics if autonomous switching is enabled.

The software maintains two accounting databases: an active database and a checkpointed database.

Example

The following example enables IPX accounting on Ethernet interface 0:

interface ethernet 0
ipx accounting
Related Commands

clear ipx accounting
ipx accounting-list
ipx accounting-threshold
ipx accounting-transits
show ipx accounting

ipx accounting-list

To filter the networks for which IPX accounting information is kept, use the ipx accounting-list global configuration command. To remove the filter, use the no form of this command.

ipx accounting-list number mask
no ipx accounting-list
number mask

Syntax Description
number Network number. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA you can enter AA.

mask Network mask.
Default

No filters are predefined.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The source and destination addresses of each IPX packet are logically ANDed with the mask and compared with the network number. If there is a match, accounting information about the IPX packet is entered into the accounting database. If there is no match, the IPX packet is considered to be a transit packet and may be counted, depending on the setting of the ipx accounting-transits global configuration command.

Example

The following example adds all networks with IPX network numbers beginning with 1 to the list of networks for which accounting information is kept:

ipx accounting-list 1 0000.0000.0000
Related Commands

clear ipx accounting
ipx accounting
ipx accounting-threshold
ipx accounting-transits
show ipx accounting

ipx accounting-threshold

To set the maximum number of accounting database entries, use the ipx accounting-threshold global configuration command. To restore the default, use the no form of this command.

ipx accounting-threshold threshold
no ipx accounting-threshold
threshold

Syntax Description
threshold Maximum number of entries (source and destination address pairs) that the Cisco IOS software can accumulate.
Default

512 entries

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The accounting threshold defines the maximum number of entries (source and destination address pairs) that the software accumulates. The threshold is designed to prevent IPX accounting from consuming all available free memory. This level of memory consumption could occur in a router that is switching traffic for many hosts. To determine whether overflows have occurred, use the show ipx accounting EXEC command.

Example

The following example sets the IPX accounting database threshold to 500 entries:

ipx accounting-threshold 500
Related Commands

clear ipx accounting
ipx accounting
ipx accounting-list
ipx accounting-transits
show ipx accounting

ipx accounting-transits

To set the maximum number of transit entries that will be stored in the IPX accounting database, use the ipx accounting-transits global configuration command. To disable this function, use the no form of this command.

ipx accounting-transits count
no ipx accounting-transits

Syntax Description
count Number of transit entries that will be stored in the IPX accounting database.
Default

0 entries

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Transit entries are those that do not match any of the filters specified by ipx accounting-list global configuration commands. If you have not defined any filters, no transit entries are possible.

To maintain accurate accounting totals, the Cisco IOS software maintains two accounting databases: an active database and a checkpointed database.

Example

The following example specifies a maximum of 100 transit records to be stored in the IPX accounting database:

ipx accounting-transits 100
Related Commands

clear ipx accounting
ipx accounting-list
ipx accounting-threshold
show ipx accounting

ipx advertise-default-route-only

To advertise only the default RIP route via the specified network, use the ipx advertise-default-route-only interface configuration command. To advertise all known RIP routes out the interface, use the no form of this command.

ipx advertise-default-route-only network
no ipx advertise-default-route-only network

Syntax Description
network Number of the network via which to advertise the default route.
Default

Disabled (that is, all known routes advertised out the interface)

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

If you specify the ipx advertise-default-route-only command, only a known default RIP route is advertised out the interface; no other networks will be advertised. If you have a large number of routes in the routing table, for example, on the order of 1,000 routes, none of them will be advertised out the interface. However, if the default route is known, it will be advertised. Nodes on the interface can still reach any of the 1,000 networks via the default route.

Specifying the ipx advertise-default-route-only command results in a significant reduction in CPU processing overhead when there are many routes and many interfaces. It also reduces the load on downstream routers.

This command applies only to RIP. NLSP and Enhanced IGRP are not affected when you enable this command. They continue to advertise all routes that they know about.


Note Not all routers recognize and support the default route. Use this command with caution if you are not sure if all routers in your network support the default route.
Example

The following example enables the advertising of the default route only:

interface ethernet 1
ipx network 1234
ipx advertise-default-route-only 1234
Related Command

ipx default-route

ipx backup-server-query-interval

To change the time between successive queries of each Enhanced IGRP neighbor's backup server table, use the ipx backup-server-query-interval global configuration command. To restore the default time, use the no form of this command.

ipx backup-server-query-interval interval
no ipx backup-server-query-interval

Syntax Description
interval Minimum time, in seconds, between successive queries of each Enhanced IGRP neighbor's backup server table. The default is 15 seconds.
Default

15 seconds

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

A lower interval may use more CPU resources, but may cause lost server information to be retrieved from other servers' tables sooner.

Example

The following example changes the server query time to 5 seconds:

ipx backup-server-query-interval 5

ipx bandwidth-percent eigrp

To configure the percentage of bandwidth that may be used by Enhanced IGRP on an interface, use the ipx bandwidth-percent eigrp interface configuration command. To restore the default value, use the no form of this command.

ipx bandwidth-percent eigrp as-number percent
no ipx bandwidth-percent eigrp
as-number

Syntax Description
as-number Autonomous system number.
percent Percentage of bandwidth that Enhanced IGRP may use.
Default

50 percent

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Enhanced IGRP will use up to 50 percent of the bandwidth of a link, as defined by the bandwidth interface configuration command. This command may be used if some other fraction of the bandwidth is desired. Note that values greater than 100 percent may be configured; this may be useful if the bandwidth is set artificially low for other reasons.

Example

The following example allows Enhanced IGRP to use up to 75 percent (42 kbps) of a 56 kbps serial link in autonomous system 209:

interface serial 0
bandwidth 56
ipx bandwidth-percent eigrp 209 75
Related Commands

A dagger (+) indicates that the command is documented outside this chapter.

bandwidth +
ipx router

ipx broadcast-fastswitching

To enable the router to fast switch IPX directed broadcast packets, use the ipx broadcast-fastswitching global configuration command. To disable fast switching of IPX directed broadcast packets, use the no form of the command.

ipx broadcast-fastswitching
no ipx broadcast-fastswitching

Syntax Description

This command has no arguments or keywords.

Default

Disabled

The default behavior is to process-switch directed broadcast packets.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1

A directed broadcast is one with a network layer destination address of the form net.ffff.ffff.ffff. The ipx broadcast-fastswitching command permits the router to fast switch IPX directed broadcast packets. This may be useful in certain broadcast-based applications that rely on helpering.

Note that the router never uses autonomous switching for eligible directed broadcast packets, even if autonomous switching is enabled on the output interface. Also note that routing and service updates are always exempt from this treatment.

Example

The following example enables the router to fast switch IPX directed broadcast packets:

ipx broadcast-fastswitching
Related Command

ipx helper-address

ipx default-output-rip-delay

To set the default interpacket delay for RIP updates sent on all interfaces, use the ipx default-output-rip-delay global configuration command. To return to the initial default delay value, use the no form of this command.

ipx default-output-rip-delay delay
no ipx default-output-rip-delay [delay]

Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet RIP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The interpacket delay is the delay between the individual packets sent in a multiple-packet routing update. The ipx default-output-rip-delay command sets a default interpacket delay for all interfaces.

The system uses the delay specified by the ipx default-output-rip-delay command for periodic and triggered routing updates when no delay is set for periodic and triggered routing updates on an interface. When you set a delay for triggered routing updates, the system uses the delay specified by the ipx default-output-rip-delay command for only the periodic routing updates sent on all interfaces.

To set a delay for triggered routing updates, see the ipx triggered-rip-delay or ipx default-triggered-rip-delay commands.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX machines. These machines may lose RIP updates because they process packets more slowly than the router sends them. The delay imposed by this command forces the router to pace its output to the slower-processing needs of these IPX machines.

The default delay on a NetWare 3.11 server is about 100 ms.

This command is also useful on limited bandwidth point-to-point links or X.25 and Frame Relay multipoint interfaces.

Example

The following example sets a default interpacket delay of 55 ms for RIP updates sent on all interfaces:

ipx default-output-rip-delay 55
Related Commands

ipx default-triggered-rip-delay
ipx output-rip-delay
ipx triggered-rip-delay

ipx default-output-sap-delay

To set a default interpacket delay for SAP updates sent on all interfaces, use the ipx default-output-sap-delay global configuration command. To return to the initial default delay value, use the no form of this command.

ipx default-output-sap-delay delay
no ipx default-output-sap-delay [delay]

Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet SAP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The interpacket delay is the delay between the individual packets sent in a multiple-packet SAP update. The ipx default-output-sap-delay command sets a default interpacket delay for all interfaces.

The system uses the delay specified by the ipx default-output-sap-delay command for periodic and triggered SAP updates when no delay is set for periodic and triggered updates on an interface. When you set a delay for triggered updates, the system uses the delay specified by the ipx default-output-sap-delay command only for the periodic SAP updates sent on all interfaces.

To set a delay for triggered updates, see the ipx triggered-sap-delay or ipx default-triggered-sap-delay commands.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX servers. These servers may lose SAP updates because they process packets more slowly than the router sends them. The delay imposed by this command forces the router to pace its output to the slower-processing needs of these servers.

The default delay on a NetWare 3.11 server is about 100 ms.

This command is also useful on limited bandwidth point-to-point links or X.25 interfaces.

Example

The following example sets a default interpacket delay of 55 ms for SAP updates sent on all interfaces:

ipx default-output-sap-delay 55
Related Commands

ipx default-triggered-sap-delay
ipx output-sap-delay
ipx triggered-sap-delay

ipx default-route

To forward towards the default network, if known, all packets for which a route to the destination network is unknown, use the ipx default-route global configuration command. To discard all packets for which a route to the destination network is unknown, use the no form of this command.

ipx default-route
no ipx default-route

Syntax Description

This command has no arguments or keywords.

Default

Enabled; that is, all packets for which a route to the destination is unknown are forwarded toward the default network, which is -2 (0xFFFFFFFE).

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Example

The following example disables the forwarding of packets towards the default network:

no ipx default-route
Related Command

ipx advertise-default-route-only

ipx default-triggered-rip-delay

To set the default interpacket delay for triggered RIP updates sent on all interfaces, use the ipx default-triggered-rip-delay global configuration command. To return to the system default delay, use the no form of this command.

ipx default-triggered-rip-delay delay
no ipx default-triggered-rip-delay [delay]

Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet RIP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The interpacket delay is the delay between the individual packets sent in a multiple-packet routing update. A triggered routing update is one that the system sends in response to a "trigger" event, such as a request packet, interface up/down, route up/down, or server up/down.

The ipx default-triggered-rip-delay command sets the default interpacket delay for triggered routing updates sent on all interfaces. On a single interface, you can override this global default delay for triggered routing updates using the ipx triggered-rip-delay interface command.

The global default delay for triggered routing updates overrides the delay value set by the ipx output-rip-delay or ipx default-output-rip-delay command for triggered routing updates.

If the delay value set by the ipx output-rip-delay or ipx default-output-rip-delay command is high, then we strongly recommend a low delay value for triggered routing updates so that updates triggered by special events are sent in a more timely manner than periodic routing updates.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX machines. These machines may lose RIP updates because they process packets more slowly than the router sends them. The delay imposed by this command forces the router to pace its output to the slower-processing needs of these IPX machines.

The default delay on a NetWare 3.11 server is approximately 100 ms.

When you do not set the interpacket delay for triggered routing updates, the system uses the delay specified by the ipx output-rip-delay or ipx default-output-rip-delay command for both periodic and triggered routing updates.

When you use the no form of the ipx default-triggered-rip-delay command, the system uses the delay set by the ipx output-rip-delay or ipx default-output-rip-delay command for triggered RIP updates, if set. Otherwise, the system uses the initial default delay as described in the "Default" section.

This command is also useful on limited bandwidth point-to-point links, or X.25 and Frame Relay multipoint interfaces.

Example

The following example sets an interpacket delay of 55 ms for triggered routing updates sent on all interfaces:

ipx default-triggered-rip-delay 55
Related Commands

ipx default-output-rip-delay
ipx output-rip-delay
ipx triggered-rip-delay

ipx default-triggered-sap-delay

To set the default interpacket delay for triggered SAP updates sent on all interfaces, use the ipx default-triggered-sap-delay global configuration command. To return to the system default delay, use the no form of this command.

ipx default-triggered-sap-delay delay
no ipx default-triggered-sap-delay [delay]

Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet SAP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The interpacket delay is the delay between the individual packets sent in a multiple-packet SAP update. A triggered SAP update is one that the system sends in response to a "trigger" event, such as a request packet, interface up/down, route up/down, or server up/down.

The ipx default-triggered-sap-delay command sets the default interpacket delay for triggered SAP updates sent on all interfaces. On a single interface, you can override this global default delay for triggered updates using the ipx triggered-sap-delay interface command.

The global default delay for triggered updates overrides the delay value set by the ipx output-sap-delay or ipx default-output-sap-delay command for triggered updates.

If the delay value set by the ipx output-sap-delay or ipx default-output-sap-delay command is high, then we strongly recommend a low delay value for triggered updates so that updates triggered by special events are sent in a more timely manner than periodic updates.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX servers. These servers may lose SAP updates because they process packets more slowly than the router sends them. The delay imposed by this command forces the router to pace its output to the slower-processing needs of these IPX servers.

The default delay on a NetWare 3.11 server is approximately 100 ms.

When you do not set the interpacket delay for triggered SAP updates, the system uses the delay specified by the ipx output-sap-delay or ipx default-output-sap-delay command for both periodic and triggered SAP updates.

When you use the no form of the ipx default-triggered-sap-delay command, the system uses the delay set by the ipx output-sap-delay or ipx default-output-sap-delay command for triggered SAP updates, if set. Otherwise, the system uses the initial default delay as described in the "Default" section.

This command is also useful on limited bandwidth point-to-point links, or X.25 and Frame Relay multipoint interfaces.

Example

The following example sets an interpacket delay of 55 ms for triggered SAP updates sent on all interfaces:

ipx default-triggered-sap-delay 55
Related Commands

ipx default-output-sap-delay
ipx output-sap-delay
ipx triggered-sap-delay

ipx delay

To set the tick count, use the ipx delay interface configuration command. To reset the default increment in the delay field, use the no form of this command.

ipx delay ticks
no ipx delay

Syntax Description
ticks Number of IBM clock ticks of delay to use. One clock tick is 1/18 of a second (approximately 55 ms).
Default

The default delay is determined from the delay configured on the interface with the delay command. It is (interface delay + 333) / 334. Therefore, unless you change the delay by a value greater than 334, you will not notice a difference.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx delay command sets the count used in the IPX RIP delay field, which is also known as the ticks field.

IPXWAN links determine their delay dynamically. If you do not specify the ipx delay command on an interface and you have not changed the interface delays with the interface delay interface configuration command, all LAN interfaces have a delay of 1 and all WAN interfaces have a delay of 6. The preferred method of adjusting delays is to use the ipx delay command, not the interface delay command. The show ipx interface EXEC command display only the delay value configured with the ipx delay command.

With IPXWAN, if you change the interface delay with the interface delay command, the ipx delay command uses that delay when calculating a delay to use. Also, when changing delays with IPXWAN, the changes affect only the link's calculated delay on the side considered to be the master.

Leaving the delay at its default value is sufficient for most interfaces.

Example

The following example changes the delay for serial interface 0 to 10 ticks:

interface serial 0
ipx delay 10
Related Commands

A dagger (+) indicates that the command is documented outside this chapter.

delay +
ipx maximum-paths
ipx output-network-filter
ipx output-rip-delay

ipx down

To administratively shut down an IPX network, use the ipx down interface configuration command. To restart the network, use the no form of this command.

ipx down network
no ipx down

Syntax Description
network Number of the network to shut down. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD. You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.
Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx down command administratively shuts down the specified network. The network still exists in the configuration, but is not active. When shutting down, the network sends out update packets informing its neighbors that it is shutting down. This allows the neighboring systems to update their routing, SAP, and other tables without having to wait for routes and services learned via this network to time out.

To shut down an interface in a manner that is considerate of one's neighbor, use ipx down before using the shutdown command.

Example

The following example administratively shuts down network AA on Ethernet interface 0:

interface ethernet 0
ipx down AA

ipx gns-reply-disable

To disable the sending of replies to IPX Get Nearest Server (GNS) queries, use the ipx gns-reply-disable interface configuration command. To return to the default, use the no form of this command.

ipx gns-reply-disable
no ipx gns-reply-disable

Syntax Description

This command has no arguments or keywords.

Default

Replies are sent to IPX GNS queries.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Example

The following example disables the sending of replies to GNS queries on Ethernet interface 0:

interface ethernet 0
ipx gns-reply-disable
Related Command

ipx gns-response-delay

ipx gns-response-delay

To change the delay when responding to Get Nearest Server (GNS) requests, use the ipx gns-response-delay global or interface configuration command. To return to the default delay, use the no form of this command.

ipx gns-response-delay [milliseconds]
no ipx gns-response-delay

Syntax Description
milliseconds (Optional) Time, in milliseconds, that the Cisco IOS software waits after receiving a GNS request from an IPX client before responding with a server name to that client. The default is zero, which indicates no delay.
Default

0 (no delay)

Command Mode

Global configuration (globally changes the delay for the router)
Interface configuration (overrides the globally configured delay for an interface)

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

This command can be used in two modes: global configuration or interface configuration. In both modes, the command syntax is the same. A delay in responding to GNS requests might be imposed so that, in certain topologies, any local Novell IPX servers respond to the GNS requests before our software does. It is desirable to have these end-host server systems get their reply to the client before the router does because the client typically takes the first response, not the best response. In this case the best response is the one from the local server.

NetWare 2.x has a problem with dual-connected servers in parallel with a router. If you are using this version of NetWare, you should set a GNS delay. A value of 500 ms is recommended.

In situations in which servers are always located across routers from their clients, there is no need for a delay to be imposed.

Example

The following example sets the delay in responding to GNS requests to 500 ms (0.5 second):

ipx gns-response-delay 500
Related Command

ipx gns-reply-disable

ipx gns-round-robin

To rotate using a round-robin selection method through a set of eligible servers when responding to Get Nearest Server (GNS) requests, use the ipx gns-round-robin global configuration command. To use the most recently learned server, use the no form of this command.

ipx gns-round-robin
no ipx gns-round-robin

Syntax Description

The command has no arguments or keywords.

Default

The most recently learned, eligible server is used.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

In the normal server selection process, requests for service are responded to with the most recently learned, closest server. If you enable the round-robin method, the Cisco IOS software maintains a list of the nearest servers eligible to provide specific services. It uses this list when responding to GNS requests. Responses to requests are distributed in a round-robin fashion across all active IPX interfaces on the router.

Eligible servers are those that satisfy the "nearest" requirement for a given request and that are not filtered either by a SAP filter or by a GNS filter.

Example

The following example responds to GNS requests using a round-robin selection method from a list of eligible nearest servers:

ipx gns-round-robin 
Related Commands

ipx output-gns-filter
ipx output-sap-delay

ipx hello-interval eigrp

To configure the interval between Enhanced IGRP hello packets, use the ipx hello-interval eigrp interface configuration command. To restore the default interval, use the no form of this command.

ipx hello-interval eigrp autonomous-system-number seconds
no ipx hello-interval eigrp autonomous-system-number seconds

Syntax Description
autonomous-system-number Enhanced IGRP autonomous system number. It can be a decimal integer from 1 to 65535.
seconds Interval between hello packets, in seconds. The default interval is 5 seconds, which is one-third of the default hold time.
Default

For low-speed NBMA networks: 60 seconds
For all other networks: 5 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The default of 60 seconds applies only to low-speed, nonbroadcast, multiaccess (NBMA) media. Low speed is considered to be a rate of T1 or slower, as specified with the bandwidth interface configuration command. Note that for purposes of Enhanced IGRP, Frame Relay and SMDS networks may or may not be considered to be NBMA. These networks are considered NBMA if the interface has not been configured to use physical multicasting; otherwise they are considered not to be NBMA.

Example

The following example changes the hello interval to 10 seconds:

interface ethernet 0
ipx network 10
ipx hello-interval eigrp 4 10
Related Command

ipx hold-down eigrp

ipx helper-address

To forward broadcast packets to a specified server, use the ipx helper-address interface configuration command. To disable this function, use the no form of this command.

ipx helper-address network.node
no ipx helper-address network.node

Syntax Description
network Network on which the target IPX server resides. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range
1 to FFFFFFFD. A network number of -1 indicates all-nets flooding. You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.
.node Node number of the target Novell server. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx). A node number of FFFF.FFFF.FFFF matches all servers.
Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Routers normally block all broadcast requests and do not forward them to other network segments. This is done to prevent the degradation of performance over the entire network. The ipx helper-address command allows broadcasts to be forwarded to other networks. This is useful when a network segment does not have an end-host capable of servicing a particular type of broadcast request. This command lets you forward the broadcasts to a server, network, or networks that can process them. Incoming unrecognized broadcast packets that match the access list created with the ipx helper-list command, if it is present, are forwarded.

You can specify multiple ipx helper-address commands on a given interface.

The Cisco IOS software supports all-networks flooded broadcasts (sometimes referred to as all-nets flooding). These are broadcast messages that are forwarded to all networks. To configure the all-nets flooding, define the IPX helper address for an interface as follows:

ipx helper-address -1.FFFF.FFFF.FFFF

On systems configured for IPX routing, this helper address is displayed as follows (via the show ipx interface command):

FFFFFFFF.FFFF.FFFF.FFFF

Although our software takes care to keep broadcast traffic to a minimum, some duplication is unavoidable. When loops exist, all-nets flooding can propagate bursts of excess traffic that will eventually age out when the hop count reaches its limit (16 hops). Use all-nets flooding carefully and only when necessary. Note that you can apply additional restrictions by defining a helper list.

To forward type 20 packets to only those nodes specified by the ipx helper-address command, use the ipx helper-address command in conjunction with the ipx type-20-helpered global configuration command.

To forward type 20 packets to all nodes on the network, use the ipx type-20-propagation command. See the ipx type-20-propagation command for more information.

Example

In the following example, all-nets broadcasts on Ethernet interface 0 (except type 20 propagation packets) are forwarded to IPX server 00b4.23cd.110a on network bb:

interface ethernet 0
ipx helper-address bb.00b4.23cd.110a
Related Commands

ipx helper-list
ipx type-20-propagation

ipx helper-list

To assign an access list to an interface to control broadcast traffic (including type 20 propagation packets), use the ipx helper-list interface configuration command. To remove the access list from an interface, use the no form of this command.

ipx helper-list access-list-number
no ipx helper-list
access-list-number

Syntax Description
access-list-number Number of the access list. All outgoing packets defined with either standard or extended access lists are filtered by the entries in this access list. For standard access lists, access-list-number is a decimal number from 800 to 899. For extended access lists, it is a decimal number from 900 to 999.
Default

No access list is preassigned.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx helper-list command specifies an access list to use in forwarding broadcast packets. One use of this command is to prevent client nodes from discovering services they should not use.

Because the destination address of a broadcast packet is by definition the broadcast address, this command is useful only for filtering based on the source address of the broadcast packet.

The helper list, if present, is applied to both all-nets broadcast packets and type 20 propagation packets.

The helper list on the input interface is applied to packets before they are output via either the helper address or type 20 propagation packet mechanism.

You should filter IPX broadcasts on dial-on-demand routing (DDR) and other similar interfaces, because IPX sends broadcast messages very regularly.

Example

The following example assigns access list 900 to Ethernet interface 0 to control broadcast traffic:

interface ethernet 0
ipx helper-list 900
Related Commands

access-list (extended)
access-list (standard)
ipx helper-address
ipx type-20-propagation

ipx hold-down eigrp

To specify the length of time a lost Enhanced IGRP route is placed in the hold-down state, use the ipx hold-down eigrp interface configuration command. To restore the default time, use the no form of this command.

ipx hold-down eigrp autonomous-system-number seconds
no ipx hold-down eigrp
autonomous-system-number seconds
Syntax Description
autonomous-system-number Enhanced IGRP autonomous system number. It can be a decimal integer from 1 to 65535.
seconds Hold-down time, in seconds. The default hold time is 5 seconds.
Default

5 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

When an Enhanced IGRP route is lost, it is placed into a hold-down state for a period of time. The purpose of the hold-down state is to ensure the validity of any new routes for the same destination.

The amount of time a lost Enhanced IGRP route is placed in the hold-down state is configurable. Set the amount of time to a value longer than the default of 5 seconds if your network requires a longer time for the unreachable route information to propagate.

Example

The following example changes the hold-down time for autonomous system 4 to 45 seconds:

interface ethernet 0
ipx network 10
ipx hold-down eigrp 4 45

ipx hold-time eigrp

To specify the length of time a neighbor should consider Enhanced IGRP hello packets valid, use the ipx hold-time eigrp interface configuration command. To restore the default time, use the no form of this command.

ipx hold-time eigrp autonomous-system-number seconds
no ipx hold-time eigrp
autonomous-system-number seconds
Syntax Description
autonomous-system-number Enhanced IGRP autonomous system number. It can be a decimal integer from 1 to 65535.
seconds Hold time, in seconds. The hold time is advertised in hello packets and indicates to neighbors the length of time they should consider the sender valid. The default hold time is 15 seconds, which is 3 times the hello interval.
Default

For low-speed NBMA networks: 180 seconds
For all other networks: 15 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

If the current value for the hold time is less than two times the interval between hello packets, the hold time will be reset to three times the hello interval.

If a router does not receive a hello packet within the specified hold time, routes through the router are considered available.

Increasing the hold time delays route convergence across the network.

The default of 180 seconds applies only to low-speed, nonbroadcast, multiaccess (NBMA) media. Low speed is considered to be a rate of T1 or slower, as specified with the bandwidth interface configuration command.

Example

The following example changes the hold time to 45 seconds:

interface ethernet 0
ipx network 10
ipx hold-time eigrp 4 45
Related Command

ipx hello-interval eigrp

ipx input-network-filter

To control which networks are added to the Cisco IOS software's routing table, use the ipx input-network-filter interface configuration command. To remove the filter from the interface, use the no form of this command.

ipx input-network-filter access-list-number
no ipx input-network-filter
access-list-number

Syntax Description
access-list-number Number of the access list. All incoming packets defined with either standard or extended access lists are filtered by the entries in this access list. For standard access lists, access-list-number is a decimal number from 800 to 899. For extended access lists, it is a decimal number from 900 to 999.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx input-network-filter command controls which networks are added to the routing table based on the networks learned in incoming IPX routing updates (RIP updates) on the interface.

You can issue only one ipx input-network-filter command on each interface.

Examples

In the following example, access list 876 controls which networks are added to the routing table when IPX routing updates are received on Ethernet interface 1. Routing updates for network 1b will be accepted. Routing updates for all other networks are implicitly denied and are not added to the routing table.

access-list 876 permit 1b
interface ethernet 1
ipx input-network-filter 876

The following example is a variation of the preceding that explicitly denies network 1a and explicitly allows updates for all other networks:

access-list 876 deny 1a
access-list 876 permit -1
Related Commands

access-list (extended)
access-list (standard)
ipx output-network-filter
ipx router-filter

ipx input-sap-filter

To control which services are added to the Cisco IOS software's SAP table, use the ipx input-sap-filter interface configuration command. To remove the filter, use the no form of this command.

ipx input-sap-filter access-list-number
no ipx input-sap-filter
access-list-number

Syntax Description
access-list-number Number of the SAP access list. All incoming packets are filtered by the entries in this access list. The argument access-list-number is a decimal number from 1000 to 1099.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx input-sap-filter command filters all incoming service advertisements received by the router. This is done prior to accepting information about a service.

You can issue only one ipx input-sap-filter command on each interface.

When configuring SAP filters for NetWare 3.11 and later servers, use the server's internal network and node number (the node number is always 0000.0000.0001) as its address in the access-list (SAP filtering) command. Do not use the network.node address of the particular interface board.

Example

The following example denies service advertisements about the server at address 3c.0800.89a1.1527, but accepts information about all other services on all other networks:

access-list 1000 deny 3c.0800.89a1.1527
access-list 1000 permit -1
interface ethernet 0
ipx input-sap-filter 1000
Related Commands

access-list (SAP filtering)
ipx output-sap-filter
ipx router-sap-filter

ipx internal-network

To set an internal network number for use by NLSP and IPXWAN, use the ipx internal-network global configuration command. To remove an internal network number, use the no form of this command.

ipx internal-network network-number
no ipx internal-network [network-number]

Syntax Description
network-number Number of the internal network.
Default

No internal network number is set.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

An internal network number is a network number assigned to the router. This network number must be unique within the internetwork.

You must configure an internal network number on each device on an NLSP-capable network for NLSP to operate.

When you set an internal network number, the Cisco IOS software advertises the specified network out all interfaces. It accepts packets destined to that network at the address internal-network.0000.0000.0001.

Example

The following example assigns internal network number e001 to the local router:

ipx routing
ipx internal-network e001
Related Commands

ipx router nlsp
ipx routing

ipx ipxwan

To enable the IPXWAN protocol on a serial interface, use the ipx ipxwan interface configuration command. To disable the IPXWAN protocol, use the no form of this command.

ipx ipxwan [local-node {network-number | unnumbered} local-server-name retry-interval
retry-limit
]
no ipx ipxwan

Syntax Description
local-node (Optional) Primary network number of the router. This is an IPX network number that is unique across the entire internetwork. On NetWare 3.x servers, the primary network number is called the internal network number. The device with the higher number is determined to be the link master. A value of 0 causes the Cisco IOS software to use the configured internal network number.
network-number (Optional) IPX network number to be used for the link if this router is the one determined to be the link master. The number is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 0 to FFFFFFFD. A value 0 is equivalent to specifying the keyword unnumbered.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

unnumbered (Optional) Specifies that no IPX network number is defined for the link. This is equivalent to specifying a value of 0 for the network-number argument.
local-server-name (Optional) Name of the local router. It can be up to 47 characters long, and can contain uppercase letters, digits, underscores (_), hyphens (-), and at signs (@). On NetWare 3.x servers, this is the router name. For our routers, this is the name of the router as configured via the hostname command; that is, the name that precedes the standard prompt, which is an angle bracket (>) for EXEC mode or a pound sign (#) for privileged EXEC mode.
retry-interval (Optional) Retry interval, in seconds. This interval defines how often the software will retry the IPXWAN start-up negotiation if a start-up failure occurs. Retries will occur until the retry limit defined by the retry-limit argument is reached. It can be a value from 1 to 600. The default is 20 seconds.
retry-limit (Optional) Maximum number of times the software retries the IPXWAN start-up negotiation before taking the action defined by the ipx ipxwan error command. It can be a value from
1 through 100. The default is 3.
Default

IPXWAN is disabled.

If you enable IPXWAN, the default is unnumbered.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0. The unnumbered keyword and retry-interval argument first appeared in Cisco IOS Release 10.3.

If you omit all optional arguments and keywords, the ipx ipxwan command defaults to ipx ipxwan 0 unnumbered router-name (which is equivalent to ipx ipxwan 0 local-server-name), where router-name is the name of the router as configured with the hostname global configuration command. For this configuration, the show ipx interface command displays ipx ipxwan 0 0 local-server-name.

If you enter a value of 0 for the network-number argument, the output of the show running-config EXEC command does not show the 0 but rather reports this value as "unnumbered."

The name of each device on each side of the link must be different.

IPXWAN is a start-up end-to-end options negotiations protocol. When a link comes up, the first IPX packets sent across are IPXWAN packets negotiating the options for the link. When the IPXWAN options have been successfully determined, normal IPX traffic starts. The three options negotiated are the link IPX network number, internal network number, and link delay (ticks) characteristics. The side of the link with the higher local-node number (internal network number) gives the IPX network number and delay to use for the link to the other side. Once IPXWAN finishes, no IPXWAN packets are sent unless link characteristics change or the connection fails. For example, if the IPX delay is changed from the default setting, an IPXWAN restart will be forced.

To enable the IPXWAN protocol on a serial interface, you must not have configured an IPX network number (using the ipx network interface configuration command) on that interface.

To control the delay on a link, use the ipx delay interface configuration command. If you issue this command when the serial link is already up, the state of the link will be reset and renegotiated.

Examples

The following example enables IPXWAN on serial interface 0:

interface serial 0
encapsulation ppp
ipx ipxwan 

The following example enables IPXWAN on serial interface 1 on device CHICAGO-AS. When the link comes up, CHICAGO-AS will be the master because it has a larger internal network number. It will give the IPX number 100 to NYC-AS to use as the network number for the link. The link delay, in ticks, will be determined by the exchange of packets between the two access servers.

On the local access server (CHICAGO-AS):

interface serial 1
 no ipx network
 encapsulation ppp
 ipx ipxwan 6666 100 CHICAGO-AS

On the remote router (NYC-AS):

interface serial 0
 no ipx network
 encapsulation ppp
 ipx ipxwan 1000 101 NYC-AS
Related Commands

A dagger (+) indicates that the command is documented outside this chapter.

encapsulation ppp +
hostname
+
ipx delay
ipx internal-network
ipx ipxwan error
ipx ipxwan static
ipx network
show ipx interface

ipx ipxwan error

To define how to handle IPXWAN when IPX fails to negotiate properly at link startup, use the ipx ipxwan error interface configuration command. To restore the default, use the no form of this command.

ipx ipxwan error [reset | resume | shutdown]
no ipx ipxwan error [reset | resume | shutdown]

Syntax Description
reset (Optional) Resets the link when negotiations fail. This is the default action.
resume (Optional) When negotiations fail, IPXWAN ignores the failure, takes no special action, and resumes the start-up negotiation attempt.
shutdown (Optional) Shuts down the link when negotiations fail.
Default

The link is reset.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Use the ipx ipxwan error command to define what action to take if the IPXWAN startup negotiation fails.

Example

In the following example, the serial link will be shut down if the IPXWAN startup negotiation fails after three attempts spaced 20 seconds apart:

interface serial 0
encapsulation ppp
ipx ipxwan 
ipx ipxwan error shutdown
Related Commands

ipx ipxwan
ipx ipxwan static

ipx ipxwan static

To negotiate static routes on a link configured for IPXWAN, use the ipx ipxwan static interface configuration command. To disable static route negotiation, use the no form of this command.

ipx ipxwan static
no ipx ipxwan static

Syntax Description

This command has no arguments or keywords.

Default

Static routing is disabled.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

When you specify the ipx ipxwan static command, the interface negotiates static routing on the link. If the router at the other side of the link is not configured to negotiate for static routing, the link will not initialize.

Example

The following example enables static routing with IPXWAN:

interface serial 0
encapsulation ppp
ipx ipxwan 
ipx ipxwan static
Related Commands

ipx ipxwan
ipx ipxwan error

ipx link-delay

To specify the link delay, use the ipx link-delay interface configuration command. To return to the default link delay, use the no form of this command.

ipx link-delay microseconds
no ipx link-delay microseconds

Syntax Description
microseconds Delay, in microseconds.
Default

No link delay (delay of 0)

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The link delay you specify replaces the default value or overrides the value measured by IPXWAN when it starts. The value is also supplied to NLSP for use in metric calculations.

Example

The following example sets the link delay to 20 microseconds:

ipx link-delay 20
Related Commands

ipx ipxwan
ipx spx-idle-time

ipx maximum-hops

To set the maximum hop count allowed for IPX packets, use the ipx maximum-hop global configuration command. To return to the default number of hops, use the no form of this command.

ipx maximum-hops hops
no ipx maximum-hops hops

Syntax Description
hops Maximum number of hops considered to be reachable by non-RIP routing protocols. Also, maximum number of routers that an IPX packet can traverse before being dropped. It can be a value from 16 to 254. The default is 16 hops.
Default

16 hops

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Packets whose hop count is equal to or greater than that specified by the ipx maximum-hops command are dropped.

In periodic RIP updates, the Cisco IOS software never advertises any network with a hop count greater than 15. However, using protocols other than RIP, the software might learn routes that are farther away than 15 hops. The ipx maximum-hops command defines the maximum number of hops that the software will accept as reachable, as well as the maximum number of hops that an IPX packet can traverse before it is dropped by the software. Also, the software will respond to a specific RIP request for a network that is reachable at a distance of greater than 15 hops.

Example

The following command configures the software to accept routes that are up to 64 hops away:

ipx maximum-hops 64

ipx maximum-paths

To set the maximum number of equal-cost paths the Cisco IOS software uses when forwarding packets, use the ipx maximum-paths global configuration command. To restore the default value, use the no form of this command.

ipx maximum-paths paths
no ipx maximum-paths

Syntax Description
paths Maximum number of equal-cost paths which the Cisco IOS software will use. It can be an integer from 1 to 512. The default value is 1.
Default

1 path

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx maximum-paths command increases throughput by allowing the software to choose among several equal-cost, parallel paths. (Note that when paths have differing costs, the software chooses lower-cost routes in preference to higher-cost routes.)

When per-host load sharing is disabled, IPX performs load sharing on a packet-by-packet basis in round-robin fashion, regardless of whether you are using fast switching or process switching. That is, the first packet is sent along the first path, the second packet along the second path, and so on. When the final path is reached, the next packet is sent to the first path, the next to the second path, and so on.

Limiting the number of equal-cost paths can save memory on routers with limited memory or with very large configurations. Additionally, in networks with a large number of multiple paths and systems with limited ability to cache out-of-sequence packets, performance might suffer when traffic is split between many paths.

When you enable per-host load sharing, IPX performs load sharing by transmitting traffic across multiple, equal-cost paths while guaranteeing that packets for a given end host always take the same path. Per-host load sharing decreases the possibility that successive packets to a given end host will arrive out of order.

With per-host load balancing, the number of equal-cost paths set by the ipx maximum-paths command must be greater than one; otherwise, per-host load sharing has no effect.

Example

In the following example, the software uses up to three parallel paths:

ipx maximum-paths 3
Related Commands

ipx delay
ipx per-host-load-share
show ipx route

ipx netbios input-access-filter

To control incoming IPX NetBIOS FindName messages, use the ipx netbios input-access-filter interface configuration command. To remove the filter, use the no form of this command.

ipx netbios input-access-filter {host | bytes} name
no ipx netbios input-access-filter {host | bytes} name

Syntax Description
host Indicates that the following argument is the name of a NetBIOS access filter previously defined with one or more netbios access-list host commands.
bytes Indicates that the following argument is the name of a NetBIOS access filter previously defined with one or more netbios access-list bytes commands.
name Name of a NetBIOS access list.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

You can issue only one ipx netbios input-access-filter host and one ipx netbios input-access-filter bytes command on each interface.

These filters apply only to IPX NetBIOS FindName packets. They have no effect on LLC2 NetBIOS packets.

Example

The following example filters packets arriving on Token Ring interface 1 using the NetBIOS access list engineering:

netbios access-list host engineering permit eng*
netbios access-list host engineering deny manu*
interface tokenring 1
ipx netbios input-access-filter engineering
Related Commands

ipx netbios output-access-filter
netbios access-list
show ipx interface

ipx netbios output-access-filter

To control outgoing NetBIOS FindName messages, use the ipx netbios output-access-filter interface configuration command. To remove the filter, use the no form of this command.

ipx netbios output-access-filter {host | bytes} name
no ipx netbios output-access-filter {host | bytes}
name

Syntax Description
host Indicates that the following argument is the name of a NetBIOS access filter previously defined with one or more netbios access-list host commands.
bytes Indicates that the following argument is the name of a NetBIOS access filter previously defined with one or more netbios access-list bytes commands.
name Name of a previously defined NetBIOS access list.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

You can issue only one ipx netbios output-access-filter host and one ipx netbios output-access-filter bytes command on each interface.

These filters apply only to IPX NetBIOS FindName packets. They have no effect on LLC2 NetBIOS packets.

Example

The following example filters packets leaving Token Ring interface 1 using the NetBIOS access list engineering:

netbios access-list bytes engineering permit 20 AA**04
interface token 1
ipx netbios output-access-filter bytes engineering
Related Commands

ipx netbios input-access-filter
netbios access-list
show ipx interface

ipx network

To enable IPX routing on a particular interface and to optionally select the type of encapsulation (framing), use the ipx network interface configuration command. To disable IPX routing, use the no form of this command.

ipx network network [encapsulation encapsulation-type [secondary]]
no ipx network network [encapsulation encapsulation-type]

Syntax Description
network Network number. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD.

You do not need to specify leading zeros in the network number. For example, for the network number 000000AA you can enter AA.

encapsulation encapsulation-type

(Optional) Type of encapsulation (framing). It can be one of the following values:

· arpa (for Ethernet interfaces only)--Use Novell's Ethernet_II encapsulation. This encapsulation is recommended for networks that handle both TCP/IP and IPX traffic.

· hdlc (for serial interfaces only)--Use HDLC encapsulation.

· novell-ether (for Ethernet interfaces only)--Use Novell's "Ethernet_802.3" encapsulation. This encapsulation consists of a standard 802.3 Media Access Control (MAC) header followed directly by the IPX header with a checksum of FFFF. It is the default encapsulation used by NetWare Version 3.11.

· novell-fddi (for FDDI interfaces only)--Use Novell's "FDDI_RAW" encapsulation. This encapsulation consists of a standard FDDI MAC header followed directly by the IPX header with a checksum of 0xFFFF.

· sap (for Ethernet interfaces)--Use Novell's Ethernet_802.2 encapsulation.This encapsulation consists of a standard 802.3 MAC header followed by an 802.2 LLC header. This is the default encapsulation used by NetWare Version 4.0.
-- Token Ring interfaces--This encapsulation consists of a standard 802.5 MAC header followed by an 802.2 LLC header.
--FDDI interfaces--This encapsulation consists of a standard FDDI MAC header followed by an 802.2 LLC header.

· snap (for Ethernet interfaces)--Use Novell Ethernet_Snap encapsulation. This encapsulation consists of a standard 802.3 MAC header followed by an 802.2 SNAP LLC header.
-- Token Ring and FDDI interfaces--This encapsulation consists of a standard 802.5 or FDDI MAC header followed by an 802.2 SNAP LLC header.

secondary (Optional) Indicates an additional (secondary) network configured after the first (primary) network.
Default

IPX routing is disabled.

Encapsulation types:
For Ethernet: novell-ether
For Token Ring: sap
For FDDI: snap

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx network command allows you to configure a single logical network on a physical network or more than one logical network on the same physical network (network cable segment). Each network on a given interface must have a different encapsulation type.

The first network you configure on an interface is considered to be the primary network. Any additional networks are considered to be secondary networks; these must include the secondary keyword.


Note In future Cisco IOS software releases, primary and secondary networks will not be supported.

NLSP does not support secondary networks. You must use subinterfaces in order to use multiple encapsulations with NLSP.


Note When enabling NLSP and configuring multiple encapsulations on the same physical LAN interface, you must use subinterfaces. You cannot use secondary networks.

You can configure an IPX network on any supported interface as long as all the networks on the same physical interface use a distinct encapsulation type. For example, you can configure up to four IPX networks on a single Ethernet cable because Ethernet supports four encapsulation types.

The interface processes only packets with the correct encapsulation and the correct network number. IPX networks using other encapsulations can be present on the physical network. The only effect on the router is that it uses some processing time to examine packets to determine whether they have the correct encapsulation.

All logical networks on an interface share the same set of configuration parameters. For example, if you change the IPX RIP update time on an interface, you change it for all networks on that interface.

When you define multiple logical networks on the same physical network, IPX treats each encapsulation as if it were a separate physical network. This means, for example, that IPX sends RIP updates and SAP updates for each logical network.

The ipx network command is useful when migrating from one type of encapsulation to another. If you are using it for this purpose, you should define the new encapsulation on the primary network.

To delete all networks on an interface, use the following command:

no ipx network

Deleting the primary network with the following command also deletes all networks on that interface. The argument number is the number of the primary network.

no ipx network number

To delete a secondary network on an interface, use one of the following commands. The argument number is the number of a secondary network.

no ipx network number
no ipx network
number encapsulation encapsulation-type

Novell's FDDI_RAW encapsulation is common in bridged or switched environments that connect Ethernet-based Novell end hosts via a FDDI backbone. Packets with FDDI_RAW encapsulation are classified as Novell packets, and are not automatically bridged when you enable both bridging and IPX routing. Additionally, you cannot configure FDDI_RAW encapsulation on an interface configured for IPX autonomous or SSE switching. Similarly, you cannot enable IPX autonomous or SSE switching on an interface configured with FDDI_RAW encapsulation.

With FDDI_RAW encapsulation, platforms that do not use CBUS architecture support fast switching. Platforms using CBUS architecture support only process switching of novell-fddi packets received on an FDDI interface.

Examples

The following example uses subinterfaces to create four logical networks on Ethernet interface 0. Each subinterface has a different encapsulation. Any interface configuration parameters that you specify on an individual subinterface are applied to that subinterface only.

ipx routing
interface ethernet 0
interface ethernet 0.1
ipx network 1 encapsulation novell-ether
interface ethernet 0.2
ipx network 2 encapsulation snap 
interface ethernet 0.3
ipx network 3 encapsulation arpa 
interface ethernet 0.4
ipx network 4 encapsulation sap

The following example uses primary and secondary networks to create the same four logical networks as shown previously in this section. Any interface configuration parameters that you specify on this interface are applied to all the logical networks. For example, if you set the routing update timer to 120 seconds, this value is used on all four networks.

ipx routing
ipx network 1 encapsulation novell-ether
ipx network 2 encapsulation snap secondary
ipx network 3 encapsulation arpa secondary
ipx network 4 encapsulation sap secondary

The following example enables IPX routing on a FDDI interfaces 0.2 and 0.3. On FDDI interface 0.2, the encapsulation type is SNAP. On FDDI interface 0.3, the encapsulation type is Novell's FDDI_RAW.

ipx routing
interface fddi 0.2
ipx network f02 encapsulation snap
interface fddi 0.3
ipx network f03 encapsulation novell-fddi
Related Command

ipx routing

ipx nhrp authentication

To configure the authentication string for an interface using Next Hop Resolution Protocol (NHRP), use the ipx nhrp authentication interface configuration command. To remove the authentication string, use the no form of this command.

ipx nhrp authentication string
no ipx nhrp authentication [string]

Syntax Description
string Authentication string configured for the source and destination stations that controls whether NHRP stations allow intercommunication. The string can be up to eight characters long.
Default

No authentication string is configured; the Cisco IOS software adds no authentication option to NHRP packets it generates.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

All routers configured with NHRP on a fabric (for an interface) must share the same authentication string.

Example

In the following example, the authentication string specialxx must be configured in all devices using NHRP on the interface before NHRP communication occurs:

ipx nhrp authentication specialxx

ipx nhrp holdtime

To change the number of seconds that NHRP nonbroadcast, multiaccess (NBMA) addresses are advertised as valid in authoritative NHRP responses, use the ipx nhrp holdtime interface configuration command. To restore the default value, use the no form of this command.

ipx nhrp holdtime seconds-positive [seconds-negative]
no ipx nhrp holdtime [seconds-positive [seconds-negative]]

Syntax Description
seconds-positive Time in seconds that NBMA addresses are advertised as valid in positive authoritative NHRP responses.
seconds-negative (Optional) Time in seconds that NBMA addresses are advertised as valid in negative authoritative NHRP responses.
Default

7200 seconds (2 hours) for both arguments

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The ipx nhrp holdtime command affects authoritative responses only. The advertised holding time is the length of time the Cisco IOS software tells other routers to keep information that it is provided in authoritative NHRP responses. The cached IPX-to-NBMA address mapping entries are discarded after the holding time expires.

The NHRP cache can contain static and dynamic entries. The static entries never expire. Dynamic entries expire regardless of whether they are authoritative or nonauthoritative.

If you want to change the valid time period for negative NHRP responses, you must also include a value for positive NHRP responses, as the arguments are position-dependent.

Examples

In the following example, NHRP NBMA addresses are advertised as valid in positive authoritative NHRP responses for one hour:

ipx nhrp holdtime 3600

In the following example, NHRP NBMA addresses are advertised as valid in negative authoritative NHRP responses for one hour and in positive authoritative NHRP responses for two hours:

ipx nhrp holdtime 7200 3600

ipx nhrp interest

To control which IPX packets can trigger sending a Next Hop Resolution Protocol (NHRP) Request, use the ipx nhrp interest interface configuration command. To restore the default value, use the no form of this command.

ipx nhrp interest access-list-number
no ipx nhrp interest [access-list-number]

Syntax Description
access-list-number Standard or extended IPX access list number from 800 through 999.
Default

All non-NHRP packets can trigger NHRP requests.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Use this command with the access-list command to control which IPX packets trigger NHRP Requests.

Example

In the following example, any NetBIOS traffic can cause NHRP requests to be sent, but no other IPX packets will cause NHRP requests:

ipx nhrp interest 901
access-list 901 permit 20
Related Commands

access-list (extended)
access-list (standard)

ipx nhrp map

To statically configure the IPX-to-NBMA address mapping of IPX destinations connected to a nonbroadcast, multiaccess (NBMA) network, use the ipx nhrp map interface configuration command. To remove the static entry from NHRP cache, use the no form of this command.

ipx nhrp map ipx-address nbma-address
no ipx nhrp map ipx-address nbma-address

Syntax Description
ipx-address IPX address of the destinations reachable through the NBMA network. This address is mapped to the NBMA address.
nbma-address NBMA address that is directly reachable through the NBMA network. The address format varies depending on the medium you are using. For example, ATM has a network-service access point (NSAP) address, and SMDS has an E.164 address. This address is mapped to the IPX address.
Default

No static IPX-to-NBMA cache entries exist.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

You will probably have to configure at least one static mapping in order to reach the Next Hop Server. Repeat this command to statically configure multiple IPX-to-NBMA address mappings.

Example

In the following example, this station in an SMDS network is statically configured to be served by two Next Hop Servers 1.0000.0c14.59ef and 1.0000.0c14.59d0. The NBMA address for 1.0000.0c14.59ef is statically configured to be c141.0001.0001 and the NBMA address for 1.0000.0c14.59d0 is c141.0001.0002.

interface serial 0
ipx nhrp nhs 1.0000.0c14.59ef
ipx nhrp nhs 1.0000.0c14.59d0
ipx nhrp map 1.0000.0c14.59ef c141.0001.0001
ipx nhrp map 1.0000.0c14.59d0 c141.0001.0002
Related Command

clear ipx nhrp

ipx nhrp max-send

To change the maximum frequency at which NHRP packets can be sent, use the ipx nhrp max-send interface configuration command. To restore this frequency to the default value, use the no form of this command.

ipx nhrp max-send pkt-count every interval
no ipx nhrp max-send

Syntax Description
pkt-count Number of packets which can be transmitted in the range 1 to 65,535.
interval Time (in seconds) in the range 10 to 65,535.
Default

pkt-count = 5 packets
interval = 10 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The software maintains a per interface quota of NHRP packets that can be transmitted. NHRP traffic, whether locally generated, or forwarded, cannot be sent at a rate that exceeds this quota. The quota is replenished at the rate specified by interval.

Example

In the following example, only 1 NHRP packet can be sent out serial interface 0 each minute:

interface serial 0
ipx nhrp max-send 1 every 60
Related Commands

ipx nhrp interest
ipx nhrp use

ipx nhrp network-id

To enable the Next Hop Resolution Protocol (NHRP) on an interface, use the ipx nhrp network-id interface configuration command. To disable NHRP on the interface, use the no form of this command.

ipx nhrp network-id number
no ipx nhrp network-id [number]

Syntax Description
number Globally unique, 32-bit network identifier for a nonbroadcast, multiaccess (NBMA) network. The range is 1 to 4294967295.
Default

NHRP is disabled on the interface.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

In general, all NHRP stations within a fabric must be configured with the same network identifier.

Example

The following example enables NHRP on the interface:

ipx nhrp network-id 1

ipx nhrp nhs

To specify the address of one or more NHRP Next Hop Servers, use the ipx nhrp nhs interface configuration command. To remove the address, use the no form of this command.

ipx nhrp nhs nhs-address [net-address]
no ipx nhrp nhs nhs-address [net-address]

Syntax Description
nhs-address Address of the Next Hop Server being specified.
net-address (Optional) IPX address of a network served by the Next Hop Server.
Default

No Next Hop Servers are explicitly configured, so normal network layer routing decisions forward NHRP traffic.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Use this command to specify the address of a Next Hop Server and the networks it serves. Normally, NHRP consults the network layer forwarding table to determine how to forward NHRP packets. When Next Hop Servers are configured, the next hop addresses specified with the ipx nhrp nhs command override the forwarding path specified by the network layer forwarding table that would usually be used for NHRP traffic.

For any Next Hop Server that is configured, you can specify multiple networks that it serves by repeating this command with the same nhs-address address, but different net-address IPX network numbers.

Example

In the following example, the Next Hop Server with address 1.0000.0c00.1234 serves IPX network 2.

ipx nhrp nhs 1.0000.0c00.1234 2

ipx nhrp record

To re-enable the use of forward record and reverse record options in NHRP Request and Reply packets, use the ipx nhrp record interface configuration command. To suppress the use of such options, use the no form of this command.

ipx nhrp record
no ipx nhrp record

Syntax Description

This command has no arguments or keywords.

Default

Forward record and reverse record options are enabled by default.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Forward record and reverse record options provide loop detection and are used in NHRP Request and Reply packets. Using the no form of this command disables this method of loop detection. For another method of loop detection, see the ipx nhrp responder command.

Example

The following example suppresses forward record and reverse record options:

no ipx nhrp record
Related Command

ipx nhrp responder

ipx nhrp responder

To designate which interface's primary IPX address that the Next Hop Server uses in NHRP Reply packets when the NHRP requestor uses the Responder Address option, use the ipx nhrp responder interface configuration command. To remove the designation, use the no form of this command.

ipx nhrp responder type number
no ipx nhrp responder [type] [number]

Syntax Description
type Interface type whose primary IPX address is used when a Next Hop Server complies with a Responder Address option. Valid options are atm, serial, and tunnel.
number Interface number whose primary IPX address is used when a Next Hop Server complies with a Responder Address option.
Default

The Next Hop Server uses the IPX address of the interface where the NHRP Request was received.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

If an NHRP requestor wants to know which Next Hop Server generates an NHRP Reply packet, it can request that information through the Responder Address option. The Next Hop Server that generates the NHRP Reply packet then complies by inserting its own IPX address in the Responder Address option of the NHRP Reply. The Next Hop Server uses the primary IPX address of the specified interface.

If an NHRP Reply packet being forwarded by a Next Hop Server contains that Next Hop Server's own IPX address, the Next Hop Server generates an Error Indication of type "NHRP Loop Detected" and discards the Reply.

Example

In the following example, any NHRP requests for the Responder Address will cause this router acting as a Next Hop Server to supply the primary IPX address of interface serial 0 in the NHRP Reply packet:

ipx nhrp responder serial 0

ipx nhrp use

To configure the software so that NHRP is deferred until the system has attempted to send data traffic to a particular destination multiple times, use the ipx nhrp use interface configuration command. To restore the default value, use the no form of this command.

ipx nhrp use usage-count
no ipx nhrp use usage-count

Syntax Description
usage-count Packet count in the range 1 to 65535.
Default

usage-count = 1. The first time a data packet is sent to a destination for which the system determines NHRP can be used, an NHRP request is sent.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

When the software attempts to transmit a data packet to a destination for which it has determined that NHRP address resolution can be used, an NHRP request for that destination is normally transmitted right away. Configuring the usage-count causes the system to wait until that many data packets have been sent to a particular destination before it attempts NHRP. The usage-count for a particular destination is measured over 1-minute intervals (the NHRP cache expiration interval).

The usage-count applies per destination. So if usage-count is configured to be 3, and 4 data packets are sent toward 10.0.0.1 and 1 packet toward 10.0.0.2, then an NHRP request is generated for 10.0.0.1 only.

If the system continues to need to forward data packets to a particular destination, but no NHRP response has been received, retransmission of NHRP requests are performed. This retransmission occurs only if data traffic continues to be sent to a destination.

The ipx nhrp interest command controls which packets cause NHRP address resolution to take place; the ipx nhrp use command controls how readily the system attempts such address resolution.

Example

In the following example, if in the first minute four packets are sent to one IPX address and five packets are sent to a second IPX address, then a single NHRP request is generated for the second IPX address. If in the second minute the same traffic is generated and no NHRP responses have been received, then the system retransmits its request for the second IPX address.

ipx nhrp use 5
Related Commands

ipx nhrp interest
ipx nhrp max-send

ipx nlsp csnp-interval

To configure the NLSP complete sequence number PDU (CSNP) interval, use the ipx nlsp csnp-interval interface configuration command. To restore the default value, use the no form of this command.

ipx nlsp [tag] csnp-interval seconds
no ipx nlsp [tag] csnp-interval seconds

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
seconds Time, in seconds, between the transmission of CSNPs on multiaccess networks. This interval applies to the designated router only. The interval can be a number in the range 1 to 600. The default is 30 seconds.
Default

30 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The ipx nlsp csnp-interval command applies only to the designated router for the specified interface only. This is because only designated routers send CSNP packets, which are used to synchronize the database.

CSNP does not apply to serial point-to-point interfaces. However, it does apply to WAN connections if the WAN is viewed as a multiaccess meshed network.

Example

The following example configures Ethernet interface 0 to transmit CSNPs every 10 seconds:

interface ethernet 0
ipx network 101
ipx nlsp enable
ipx nlsp csnp-interval 10
Related Commands

ipx nlsp hello-interval
ipx nlsp retransmit-interval

ipx nlsp enable

To enable NLSP routing on the primary network configured on this interface or subinterface, use the ipx nlsp enable interface configuration command. To disable NLSP routing on the primary network configured on this interface or subinterface, use the no form of this command.

ipx nlsp [tag] enable
no ipx nlsp [tag] enable

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
Default

NLSP is disabled on all interfaces.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

When you enable NLSP routing, the current settings for RIP and SAP compatibility modes as specified with the ipx nlsp rip and ipx nlsp sap interface configuration commands take effect automatically.

When you specify an NLSP tag, the router enables NLSP on the specified process. An NLSP process is a router's databases working together to manage route information about an area. NLSP version 1.0 routers are always in the same area. Each router has its own adjacencies, link-state, and forwarding databases. These databases operate collectively as a single process to discover, select, and maintain route information about the area. NLSP version 1.1 routers that exist within a single area also use a single process.

NLSP version 1.1 routers that interconnect multiple areas use multiple processes to discover, select, and maintain route information about the areas they interconnect. These routers manage an adjacencies, link-state, and area address database for each area to which they attach. Collectively, these databases are still referred to as a process. The forwarding database is shared among processes within a router. The sharing of entries in the forwarding database is automatic when all processes interconnect NLSP version 1.1 areas.

Configure multiple NLSP processes when a router interconnects multiple NLSP areas.


Note NLSP version 1.1 routers refer to routers that support the route aggregation feature, while NLSP version 1.0 routers refer to routers that do not.
Examples

The following example enables NLSP routing on Ethernet interface 0:

interface ethernet 0
ipx nlsp enable

The following example enables NLSP routing on serial interface 0:

interface serial 0
ipx ipxwan 2442 unnumbered local1
ipx nlsp enable

The following example enables NLSP routing for process area3 on Ethernet interface 0:

interface ethernet 0
ipx nlsp area3 enable
Related Commands

ipx nlsp rip
ipx nlsp sap

ipx nlsp hello-interval

To configure the interval between the transmission of hello packets, use the ipx nlsp hello-interval interface configuration command. To restore the default value, use the no form of this command.

ipx nlsp [tag] hello-interval seconds
no ipx nlsp [tag] hello-interval seconds

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
seconds Time, in seconds, between the transmission of hello packets on the interface. It can be a decimal integer in the range 1 to 1600. The default is 10 seconds for the designated router and 20 seconds for nondesignated routers.
Default

10 seconds for the designated router
20 seconds for nondesignated routers

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The designated router sends hello packets at an interval equal to one-half the configured value.

Use this command to improve the speed at which a failed router or link is detected. A router is declared to be down if a hello has not been received from it for the time determined by the holding time (the hello interval multiplied by the holding time multiplier; by default, 60 seconds for nondesignated routers and 30 seconds for designated routers). You can reduce this time by lowering the hello-interval setting, at the cost of increased traffic overhead.

You may also use this command to reduce link overhead on very slow links by raising the hello interval. This will reduce the traffic on the link at the cost of increasing the time required to detect a failed router or link.

Example

The following example configures serial interface 0 to transmit hello packets every 30 seconds:

interface serial 0
ipx ipxwan 2442 unnumbered local1
ipx nlsp enable
ipx nlsp hello-interval 30
Related Commands

ipx nlsp csnp-interval
ipx nlsp hello-multiplier
ipx nlsp retransmit-interval

ipx nlsp lsp-interval

To configure the time delay between successive NLSP link-state packet (LSP) transmissions, use the ipx nlsp lsp-interval interface configuration command. To restore the default time delay, use the no form of the command.

ipx nlsp lsp-interval interval
no ipx nlsp lsp-interval

Syntax Description
interval Time, in milliseconds, between successive LSP transmissions. The interval can be a number in the range 55 and 5000. The default interval is 55 milliseconds.
Default

55 milliseconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command allows you to control how fast LSPs can be flooded out an interface.

In topologies with a large number of NLSP neighbors and interfaces, a router may have difficulty with the CPU load imposed by LSP transmission and reception. This command allows you to reduce the LSP transmission rate (and by implication the reception rate of other systems).

Example

The following example causes the system to transmit LSPs every 100 milliseconds (10 packets per second) on Ethernet interface 0:

interface Ethernet 0
 ipx nlsp lsp-interval 100
Related Command

ipx nlsp retransmit-interval

ipx nlsp hello-multiplier

To specify the hello multiplier used on an interface, use the ipx nlsp hello-multiplier interface configuration command. To restore the default value, use the no form of this command.

ipx nlsp [tag] hello-multiplier multiplier
no nlsp [tag] hello-multiplier

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
multiplier Value by which to multiply the hello interval. It can be a decimal integer in the range 3 to 1000. The default is 3.
Default

The default multiplier is 3.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

You use the hello modifier in conjunction with the hello interval to determine the holding time value sent in a hello packet. The holding time is equal to the hello interval multiplied by the hello multiplier.

The holding time tells the neighboring router how long to wait for another hello packet from the sending router. If the neighboring router does not receive another hello packet in the specified time, then the neighboring router declares that the sending router is down.

You can use this method of determining the holding time when hello packets are lost with some frequency and NLSP adjacencies are failing unnecessarily. You raise the hello multiplier and lower the hello interval correspondingly to make the hello protocol more reliable without increasing the time required to detect a link failure.

Example

In the following example, serial interface 0 will advertise hello packets every 15 seconds. The multiplier is 5. These values determine that the hello packet holding time is 75 seconds.

interface serial 0
ipx nlsp hello-interval 15
ipx nlsp hello-multiplier 5
Related Command
ipx nlsp hello-interval

ipx nlsp metric

To configure the NLSP cost for an interface, use the ipx nlsp metric interface configuration command. To restore the default cost, use the no form of this command.

ipx nlsp [tag] metric metric-number
no ipx nlsp [tag] metric metric-number

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
metric-number Metric value for the interface. It can be a decimal integer from 0 to 63.
Default

The default varies based on the throughput of the link connected to the interface.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Use the ipx nlsp metric command to cause NLSP to prefer some links over others. A link with a lower metric is more preferable than one with a higher metric.

Typically, it is not necessary to configure the metric; however, it may be desirable in some cases when there are wide differences in link bandwidths. For example, using the default metrics, a single 64-kbps ISDN link will be preferable to two 1544-kbps T1 links.

Example

The following example configures a metric of 10 on serial interface 0:

interface serial 0
ipx network 107
ipx nlsp enable
ipx nlsp metric 10
Related Command

ipx nlsp enable

ipx nlsp priority

To configure the election priority of the specified interface for designated router election, use the ipx nlsp priority interface configuration command. To restore the default priority, use the no form of this command.

ipx nlsp [tag] priority priority-number
no ipx nlsp [tag] priority priority-number

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
priority-number Election priority of the designated router for the specified interface. This can be a number in the range 0 to 127. This value is unitless. The default is 44.
Default

44

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Use the ipx nlsp priority command to control which router is elected designated router. The device with the highest priority number is selected as the designated router.

The designated router increases its own priority by 20 in order to keep its state as of the designated router more stable. To have a particular router be selected as the designated router, configure its priority to be at least 65.

Example

The following example sets the designated router election priority to 65:

interface e 0
ipx network 101
ipx nlsp enable
ipx nlsp priority 65

ipx nlsp retransmit-interval

To configure the link-state packet (LSP) retransmission interval on WAN links, use the ipx nlsp retransmit-interval interface configuration command. To restore the default interval, use the no form of this command.

ipx nlsp [tag] retransmit-interval seconds
no ipx nlsp [tag] priority seconds

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
seconds LSP retransmission interval, in seconds. This can be a number in the range 1 to 30. The default is 5 seconds.
Default

5 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

This command sets the maximum amount of time that can pass before an LSP will be sent again (retransmitted) on a WAN link, if no acknowledgement is received.

Reducing the retransmission interval can improve the convergence rate of the network in the face of lost WAN links. The cost of reducing the retransmission interval is the potential increase in link utilization.

Example

The following example configures the LSP retransmission interval to 2 seconds:

ipx nlsp retransmit-interval 2
Related Commands

ipx nlsp csnp-interval
ipx nlsp hello-interval

ipx nlsp rip

To configure RIP compatibility when NLSP is enabled, use the ipx nlsp rip interface configuration command. To restore the default, use the no form of this command.

ipx nlsp [tag] rip [on | off | auto]
no ipx nlsp [tag] rip [on | off | auto]

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
on (Optional) Always generates and sends RIP periodic traffic.
off (Optional) Never generates and sends RIP periodic traffic.
auto (Optional) Sends RIP periodic traffic only if another RIP router in sending periodic RIP traffic. This is the default.
Default

RIP periodic traffic is sent only if another router in sending periodic RIP traffic.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The ipx nlsp rip command is meaningful only on networks on which NLSP is enabled. (RIP and SAP are always on by default on other interfaces.) Because the default mode is auto, no action is normally required to fully support RIP compatibility on an NLSP network.

Example

In the following example, the interface never generates or sends RIP periodic traffic:

interface ethernet 0
ipx nlsp rip off
Related Commands

ipx nlsp enable
ipx nlsp sap

ipx nlsp sap

To configure SAP compatibility when NLSP in enabled, use the ipx nlsp sap interface configuration command. To restore the default, use the no form of this command.

ipx nlsp [tag] sap [on | off | auto]
no ipx nlsp [tag] sap [on | off | auto]

Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
on (Optional) Always generates and sends SAP periodic traffic.
off (Optional) Never generates and sends SAP periodic traffic.
auto (Optional) Sends SAP periodic traffic only if another SAP router in sending periodic SAP traffic. This is the default.
Default

SAP periodic traffic is sent only if another router in sending periodic SAP traffic.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The ipx nlsp sap command is meaningful only on networks on which NLSP is enabled. Because the default mode is auto, no action is normally required to fully support SAP compatibility on an NLSP network.

Example

In the following example, the interface never generates or sends SAP periodic traffic:

interface ethernet 0
ipx nlsp sap off
Related Commands

ipx nlsp enable
ipx nlsp rip

ipx output-gns-filter

To control which servers are included in the Get Nearest Server (GNS) responses sent by the Cisco IOS software, use the ipx output-gns-filter interface configuration command. To remove the filter from the interface, use the no form of this command.

ipx output-gns-filter access-list-number
no ipx output-gns-filter
access-list-number

Syntax Description
access-list-number Number of the SAP access list. All outgoing GNS packets are filtered by the entries in this access list. The argument access-list-number is a decimal number from 1000 to 1099.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

You can issue only one ipx output-gns-filter command on each interface.

Example

The following example excludes the server at address 3c.0800.89a1.1527 from GNS responses sent on Ethernet interface 0, but allows all other servers:

access-list 1000 deny 3c.0800.89a1.1527
access-list 1000 permit -1
ipx routing
interface ethernet 0
ipx network 2B
ipx output-gns-filter 1000
Related Commands

access-list (SAP filtering)
ipx gns-round-robin

ipx output-network-filter

To control the list of networks included in routing updates sent out an interface, use the ipx output-network-filter interface configuration command. To remove the filter from the interface, use the no form of this command.

ipx output-network-filter access-list-number
no ipx output-network-filter
access-list-number
Syntax Description
access-list-number Number of the access list. All outgoing packets defined with either standard or extended access lists are filtered by the entries in this access list. For standard access lists, access-list-number is a decimal number from 800 to 899. For extended access lists, it is a decimal number from 900 to 999.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx output-network-filter command controls which networks the Cisco IOS software advertises in its IPX routing updates (RIP updates).

You can issue only one ipx output-network-filter command on each interface.

Example

In the following example, access list 896 controls which networks are specified in routing updates sent out the serial 1 interface. This configuration causes network 2b to be the only network advertised in Novell routing updates sent on the specified serial interface.

access-list 896 permit 2b
interface serial 1
ipx output-network-filter 896
Related Commands

access-list (extended)
access-list (standard)
ipx input-network-filter
ipx router-filter

ipx output-rip-delay

To set the interpacket delay for RIP updates sent on a single interface, use the ipx output-rip-delay interface configuration command. To return to the default value, use the no form of this command.

ipx output-rip-delay delay
no ipx output-rip-delay
[delay]
Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet RIP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The interpacket delay is the delay between the individual packets sent in a multiple-packet routing update. The ipx output-rip-delay command sets the interpacket delay for a single interface.

The system uses the interpacket delay specified by the ipx output-rip-delay command for periodic and triggered routing updates when no delay is set for triggered routing updates. When you set a delay for triggered routing updates, the system uses the delay specified by the ipx output-rip-delay command for only the periodic routing updates sent on the interface.

To set a delay for triggered routing updates, see the ipx triggered-rip-delay or ipx default-triggered-rip-delay commands.

You can also set a default RIP interpacket delay for all interfaces. See the ipx default-output-rip-delay command for more information.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX machines. These machines may lose RIP updates because they process packets more slowly than the router sends them. The delay imposed by this command forces the router to pace its output to the slower-processing needs of these IPX machines.

The default delay on a NetWare 3.11 server is about 100 ms.

This command is also useful on limited bandwidth point-to-point links or X.25 and Frame Relay multipoint interfaces.

Example

The following example establishes a 55-ms interpacket delay on serial interface 0:

interface serial 0
ipx network 106A
ipx output-rip-delay 55
Related Commands

ipx default-output-rip-delay
ipx default-triggered-rip-delay
ipx triggered-rip-delay
ipx update-time

ipx output-sap-delay

To set the interpacket delay for Service Advertising Protocol (SAP) updates sent on a single interface, use the ipx output-sap-delay interface configuration command. To return to the default delay value, use the no form of this command.

ipx output-sap-delay delay
no ipx output-sap-delay
[delay]

Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet SAP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The interpacket delay is the delay between the individual packets sent in a multiple-packet SAP update. The ipx output-sap-delay command sets the interpacket delay for a single interface.

The system uses the interpacket delay specified by the ipx output-sap-delay command for periodic and triggered SAP updates when no delay is set for triggered updates. When you set a delay for triggered updates, the system uses the delay specified by the ipx output-sap-delay command only for the periodic updates sent on the interface.

To set a delay for triggered updates, see the ipx triggered-sap-delay or ipx default-triggered-sap-delay commands.

You can also set a default SAP interpacket delay for all interfaces. See the ipx default-output-sap-delay command for more information.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX servers. These servers may lose SAP updates because they process packets more slowly than the router sends them. The delay imposed by the ipx output-sap-delay command forces the router to pace its output to the slower-processing needs of these servers.

The default delay on a NetWare 3.11 server is about 100 ms.

This command is also useful on limited bandwidth point-to-point links or X.25 and Frame Relay multipoint interfaces.

Example

The following example establishes a 55-ms delay between packets in multiple-packet SAP updates on Ethernet interface 0:

interface ethernet 0
ipx network 106A
ipx output-sap-delay 55
Related Commands

ipx default-output-sap-delay
ipx default-triggered-sap-delay
ipx sap-interval
ipx triggered-sap-delay

ipx output-sap-filter

To control which services are included in SAP updates sent by the Cisco IOS software, use the ipx output-network-filter interface configuration command. To remove the filter, use the no form of this command.

ipx output-sap-filter access-list-number
no ipx output-sap-filter
access-list-number

Syntax Description
access-list-number Number of the SAP access list. All outgoing service advertisements are filtered by the entries in this access list. The argument access-list-number is a decimal number from 1000 to 1099.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The Cisco IOS software applies output SAP filters prior to sending SAP packets.

You can issue only one ipx output-sap-filter command on each interface.

When configuring SAP filters for NetWare 3.11 and later servers, use the server's internal network and node number (the node number is always 0000.0000.0001) as its address in the SAP access-list command. Do not use the network.node address of the particular interface board.

Example

The following example denies service advertisements about server 0000.0000.0001 on network aa from being send on network 4d (via Ethernet interface 1). All other services are advertised via this network. All services, included those from server aa.0000.0000.0001, are advertised via networks 3c and 2b.

access-list 1000 deny aa.0000.0000.0001
access-list 1000 permit -1
interface ethernet 0
ipx net 3c
interface ethernet 1
ipx network 4d
ipx output-sap-filter 1000
interface serial 0
ipx network 2b
Related Commands

access-list (SAP filtering)
ipx gns-round-robin
ipx input-sap-filter
ipx router-sap-filter

ipx pad-process-switched-packets

To control whether odd-length packets are padded so as to be sent as even-length packets on an interface, use the ipx pad-process-switched-packets interface configuration command. To disable padding, use the no form of this command.

ipx pad-process-switched-packets
no ipx pad-process-switched-packets

Syntax Description

This command has no arguments or keywords.

Default

Enabled on Ethernet interfaces
Disabled on Token Ring, FDDI, and serial interfaces

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Use this command only under the guidance of a customer engineer or other service representative.

The ipx pad-process-switched-packets command affects process-switched packets only, so you must disable fast switching before the ipx pad-process-switched-packets command has any effect.

Some IPX end hosts reject Ethernet packets that are not padded. Certain topologies can result in such packets being forwarded onto a remote Ethernet network. Under specific conditions, padding on intermediate media can be used as a temporary workaround for this problem.

Example

The following command configures the Cisco IOS software to pad odd-length packets so that they are sent as even-length packets on FDDI interface 1.

interface fddi 1
ipx network 2A
no ipx route-cache
ipx pad-process-switched-packets
Related Command

ipx route-cache

ipx per-host-load-share

To enable per-host load sharing, use the ipx per-host-load-share global configuration command. To disable per-host load sharing, use the no form of the command.

ipx per-host-load-share
no ipx per-host-load-share

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Use this command to enable per-host load sharing. Per-host load sharing transmits traffic across multiple, equal-cost paths while guaranteeing that packets for a given end host always take the same path.

When you do not enable per-host load sharing, the software uses a round-robin algorithm to accomplish load sharing. Round-robin load sharing transmits successive packets over alternate, equal-cost paths, regardless of the destination host. With round-robin load sharing, successive packets destined for the same end host might take different paths. Thus, round-robin load sharing increases the possibility that successive packets to a given end host might arrive out of order or be dropped, but ensures true load balancing of a given workload across multiple links.

In contrast, per-host load sharing decreases the possibility that successive packets to a given end host will arrive out of order; but, there is a potential decrease in true load balancing across multiple links. True load sharing occurs only when different end hosts utilize different paths; equal link utilization cannot be guaranteed.

With per-host load balancing, the number of equal-cost paths set by the ipx maximum-paths command must be greater than one; otherwise, per-host load sharing has no effect.

Example

The following command globally enables per-host load sharing:

ipx per-host-load share
Related Command

ipx maximum-paths

ipx ping-default

To select the ping type that the Cisco IOS software transmits, use the ipx ping-default global configuration command. To return to the default ping type, use the no form of this command.

ipx ping-default {cisco | novell}
no ipx ping-default {cisco | novell}

Syntax Description
cisco Transmits Cisco pings.
novell Transmits standard Novell pings.
Default

Cisco pings

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Standard Novell pings conform to the definition in the Novell NLSP specification.

Example

The following example enables standard Novell pings:

ipx ping-default novell
Related Command

ping (user)

ipx rip-max-packetsize

To configure the maximum packet size of RIP updates sent out the interface, use the ipx rip-max-packetsize interface configuration command. To restore the default packet size, use the no form of this command.

ipx rip-max-packetsize bytes
no ipx rip-max-packetsize bytes

Syntax Description
bytes Maximum packet size in bytes. The default is 432 bytes, which allows for 50 routes at 8 bytes each, plus 32 bytes of IPX network and RIP header information.
Default

432 bytes

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The maximum size is for the IPX packet including the IPX network and RIP header information.

Do not allow the maximum packet size to exceed the allowed maximum size of packets for the interface.

Example

The following example sets the maximum RIP update packet to 832 bytes:

ipx rip-max-packetsize 832
Related Command

ipx sap-max-packetsize

ipx rip-multiplier

To configure the interval at which a network's RIP entry ages out, use the ipx rip-multiplier interface configuration command. To restore the default interval, use the no form of this command.

ipx rip-multiplier multiplier
no ipx rip-multiplier multiplier

Syntax Description
multiplier Multiplier used to calculate the interval at which to age out RIP routing table entries. This can be any positive integer. The value you specify is multiplied by the RIP update interval to determine the aging-out interval. The default is three times the RIP update interval.
Default

Three times the RIP update interval

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

All routers on the same physical cable should use the same multiplier value.

Example

In the following example, in a configuration where RIP updates are sent once every 2 minutes, the interval at which RIP entries age out is set to 10 minutes:

interface ethernet 0
ipx rip-multiplier 5
Related Command

ipx update-time

ipx route

To add a static route or static NLSP route summary to the routing table, use the ipx route global configuration command. To remove a route from the routing table, use the no form of this command.

ipx route {network [network-mask] | default} {network.node | interface} [floating-static]
no ipx route

Syntax Description
network Network to which you want to establish a static route.

This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD. You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

network-mask (Optional) Specifies the portion of the network address that is common to all addresses in an NLSP route summary. When used with the network argument, it specifies the static route summary.

The high-order bits of network-mask must be contiguous Fs, while the low-order bits must be contiguous zeros (0). An arbitrary mix of Fs and 0s is not permitted.

default Creates a static entry for the "default route." The router forwards all nonlocal packets for which no explicit route is known via the specified next hop address (network.node) or interface.
network.node Router to which to forward packets destined for the specified network.

The argument network is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD. You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.

The argument node is the node number of the target router. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx).

interface Network interface to which to forward packets destined for the specified network. Interface is serial 0 or serial 0.2. Specifying an interface instead of a network node is intended for use on IPXWAN unnumbered interfaces. The specified interface can be a null interface.
floating-static (Optional) Specifies that this route is a floating static route, which is a static route that can be overridden by a dynamically learned route.
Default

No static routes are predefined.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0. The following arguments and keywords first appeared in Cisco IOS 10.3: network-mask, default, interface, floating-static.

The ipx route command forwards packets destined for the specified network (network) via the specified router (network.node) or an interface (interface) on that network regardless of whether that router is sending dynamic routing information.

Floating static routes are static routes that can be overridden by dynamically learned routes. Floating static routes allow you to switch to another path whenever routing information for a destination is lost. One application of floating static routes is to provide back-up routes in topologies where dial-on-demand routing is used.

If you configure a floating static route, the Cisco IOS software checks to see if an entry for the route already exists in its routing table. If a dynamic route already exists, the floating static route is placed in reserve as part of a floating static route table. When the software detects that the dynamic route is no longer available, it replaces the dynamic route with the floating static route for that destination. If the route is later relearned dynamically, the dynamic route replaces the floating static route and the floating static route is again placed in reserve.

If you specify an interface instead of a network node address, the interface must be an IPXWAN unnumbered interface. For IPXWAN interfaces, the network number need not be preassigned; instead, the nodes may negotiate the network number dynamically.

Note that by default, floating static routes are not redistributed into other dynamic protocols.

Examples

In the following example, a router at address 3abc.0000.0c00.1ac9 handles all traffic destined for network 5e:

ipx routing
ipx route 5e 3abc.0000.0c00.1ac9

The following example defines a static NLSP route summary:

ipx routing
ipx route aaaa0000 ffff0000
Related Commands

ipx default-route
show ipx route

ipx route-cache

To enable IPX fast switching and autonomous switching, use the ipx route-cache interface configuration command. To disable fast switching, use the no form of this command.

ipx route-cache [cbus | sse]
no ipx route-cache [cbus | sse]

Syntax Description
cbus (Optional) Enables IPX autonomous switching.
sse (Optional) Enables SSE fast switching.
Default

Fast switching is enabled.
Autonomous switching is disabled.
SSE switching is disabled.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Specifying the ipx route-cache command with no keywords enables fast switching.

Fast switching allows higher throughput by switching packets using a cache created by previous transit packets. Fast switching is enabled by default on all interfaces that support fast switching, including Token Ring, Frame Relay, PPP, SMDS, and ATM.

On ciscoBus-2 interface cards, fast switching is done between all encapsulation types. On other interface cards, fast switching is done in all cases except the following: transfer of packets with sap encapsulation from an Ethernet, a Token Ring, or an FDDI network to a standard serial line.

You might want to disable fast switching in two situations. One is if you want to save memory on the interface cards: fast-switching caches require more memory than those used for standard switching. The second situation is to avoid congestion on interface cards when a high-bandwidth interface is writing large amounts of information to a low-bandwidth interface.

Autonomous switching provides faster packet switching by allowing the ciscoBus processor to switch packets independently without having to interrupt the system processor. It is available only in Cisco 7000 systems.

Autonomous switching is supported to and from all encapsulation types that you can use on IEEE interfaces; it is also supported to and from serial HDLC encapsulation. Table 48 lists the encapsulation types you can use on IEEE interfaces and shows the correspondence between the encapsulation type and the IPX frame type.


Table  48:
Novell IPX Encapsulation Types on IEEE Interfaces
Interface Type Encapsulation Type IPX Frame Type
Ethernet novell-ether (default)
arpa
sap
snap
Ethernet_802.3
Ethernet_II
Ethernet_802.2
Ethernet_Snap
Token Ring sap (default)
snap
Token-Ring
Token-Ring_Snap
FDDI snap (default)
sap
novell-fddi
Fddi_Snap
Fddi_802.2
Fddi_Raw

SSE fast switching uses the silicon switching engine (SSE) on the Cisco 7000 series SSP card to perform packet switching.

Examples

The following example enables fast switching and autonomous switching on an interface:

interface ethernet 0
ipx route-cache cbus

The following example enables fast switching and SSE fast switching on an interface:

interface ethernet 0/1
ipx route-cache sse

In the following example, both fast switching and autonomous switching are turned off on an interface:

interface ethernet 0
no ipx route-cache

Assuming that Ethernet 0 has ipx route-cache and ipx route-cache cbus is enabled, the following example turns off only autonomous switching on an interface, but leaves fast switching enabled:

interface ethernet 0
no ipx route-cache cbus
Related Commands

clear ipx cache
ipx source-network-update
ipx watchdog-spoof
show ipx cache
show ipx interface

ipx route-cache inactivity-timeout

To adjust the period and rate of route cache invalidation because of inactivity, use the ipx route-cache inactivity-timeout global configuration command. To return to the default values, use the no form of this command.

ipx route-cache inactivity-timeout period [rate]
no ipx route-cache inactivity-timeout

Syntax Description
period Number of minutes that a valid cache entry may be inactive before it is invalidated. Valid values are 0 through 65535. A value of zero disables this feature.
rate The maximum number of inactive entries that may be invalidated per minute. Valid values are 0 through 65535. A value of zero means no limit.
Defaults

The default period is 2 minutes. The default rate is 0 (unlimited invalidations).

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

IPX fast-switch cache entries that are not in use may be invalidated after a configurable period of time. If no new activity occurs, these entries will be purged from the route cache after one additional minute.

Cache entries that have been uploaded to the switch processor when autonomous switching is configured are always exempt from this treatment.

This command has no effect if silicon switching is configured.

Example

The following example sets the inactivity period to 5 minutes, and sets a maximum of 10 entries that can be invalidated per minute:

ipx route-cache inactivity-timeout 5 10
Related Commands

clear ipx cache
ipx route-cache
ipx route-cache update-timeout
show ipx cache

ipx route-cache max-size

To set a maximum limit on the number of entries in the IPX route cache, use the ipx route-cache max-size global configuration command. To return to the default setting, use the no form of this command.

ipx route-cache max-size size
no ipx route-cache max-size

Syntax Description
size Maximum number of entries allowed in the IPX route cache.
Default

The default setting is no limit on the number of entries.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

On large networks, storing too many entries in the route cache can use a significant amount of router memory, causing router processing to slow. This situation is most common on large networks that run network management applications for NetWare. If the network management station is responsible for managing all clients and servers in a very large (greater than 50,000 nodes) Novell network, the routers on the local segment can become inundated with route cache entries. The ipx route-cache max-size command allows you to set a maximum number of entries for the route cache.

If the route cache already has more entries than the specified limit, the extra entries are not deleted. However, all route cache entries are subject to being removed via the parameter set for route cache aging via the ipx route-cache inactivity-timeout command.

Example

The following example sets the maximum route cache size to 10,000 entries.

ipx route-cache max-size 10000
Related Commands

ipx route-cache
ipx route-cache inactivity-timeout
ipx route-cache update-timeout
show ipx cache

ipx route-cache update-timeout

To adjust the period and rate of route cache invalidation because of aging, use the ipx route-cache update-timeout global configuration command. To return to the default values, use the no form of this command.

ipx route-cache update-timeout period [rate]
no ipx route-cache update-timeout

Syntax Description
period Number of minutes since a valid cache entry was created before it may be invalidated. A value of zero disables this feature.
rate The maximum number of aged entries that may be invalidated per minute. A value of zero means no limit.
Default

The default setting is disabled.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

IPX fast-switch cache entries that exceed a minimum age may be invalidated after a configurable period of time. Invalidation occurs unless the cache entry was marked as active during the last minute. Following invalidation, if no new activity occurs, these entries will be purged from the route cache after one additional minute.

This capability is primarily useful when autonomous switching or silicon switching is enabled. In both cases, activity is not recorded for entries in the route cache, because data is being switched by the switch processor or silicon switch processor. In this case, it may be desirable to periodically invalidate a limited number of older cache entries each minute.

If the end hosts have become inactive, the cache entries will be purged after one additional minute. If the end hosts are still active, the route cache and autonomous or SSP cache entries will be revalidated instead of being purged.

Example

The following example sets the update timeout period to 5 minutes, and sets a maximum of 10 entries that can be invalidated per minute:

ipx route-cache update-timeout 5 10
Related Commands

clear ipx cache
ipx route-cache
ipx route-cache inactivity-timeout
show ipx cache

ipx router

To specify the routing protocol to use, use the ipx router global configuration command. To disable a particular routing protocol on the router, use the no form of this command.

ipx router {eigrp autonomous-system-number | nlsp [tag] | rip}
no ipx router {eigrp autonomous-system-number | nlsp [tag] | rip}

Syntax Description
eigrp autonomous-system-number Enables the Enhanced IGRP routing protocol. The argument autonomous-system-number is the Enhanced IGRP autonomous system number. It can be a decimal integer from 1 to 65535.
nlsp [tag] Enables the NLSP routing protocol. The optional argument tag names the NLSP process to which you are assigning the NLSP protocol. If the router has only one process, defining a tag is optional. A maximum of three NLSP processes may be configured on the router at the same time. The tag can be any combination of printable characters.
rip Enables the RIP routing protocol. It is on by default.
Default

RIP is enabled.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0. The nlsp keyword and tag argument first appeared in Cisco IOS Release 11.0.

You must explicitly disable RIP by issuing the no ipx router rip command if you do not want to use this routing protocol.

You can configure multiple Enhanced IGRP processes on a router. To do so, assign each a different autonomous system number.


Note NLSP version 1.1 routers refer to routers that support the route aggregation feature, while NLSP version 1.0 routers refer to routers that do not.

When you specify an NLSP tag, you configure the NLSP routing protocol for a particular NLSP process. An NLSP process is a router's databases working together to manage route information about an area. NLSP version 1.0 routers are always in the same area. Each router has its own adjacencies, link-state, and forwarding databases. These databases operate collectively as a single process to discover, select, and maintain route information about the area. NLSP version 1.1 routers that exist within a single area also use a single process.

NLSP version 1.1 routers that interconnect multiple areas use multiple processes to discover, select, and maintain route information about the areas they interconnect. These routers manage an adjacencies, link-state, and area address database for each area to which they attach. Collectively, these databases are still referred to as a process. The forwarding database is shared among processes within a router. The sharing of entries in the forwarding database is automatic when all processes interconnect NLSP version 1.1 areas.

Configure multiple NLSP processes when a router interconnects multiple NLSP areas.

Examples

The following example enables Enhanced IGRP:

ipx router eigrp 4

The following example enables NLSP on process area1. This process handles routing for NLSP area 1.

ipx router nlsp area1
Related Commands

network
redistribute

ipx router-filter

To filter the routers from which packets are accepted, use the ipx router-filter interface configuration command. To remove the filter from the interface, use the no form of this command.

ipx router-filter access-list-number
no ipx router-filter

Syntax Description
access-list-number Number of the access list. All incoming packets defined with either standard or extended access lists are filtered by the entries in this access list. For standard access lists, access-list-number is a decimal number from 800 to 899. For extended access lists, it is a decimal number from 900 to 999.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

You can issue only one ipx router-filter command on each interface.

Example

In the following example, access list 866 controls the routers from which packets are accepted. For Ethernet interface 0, only packets from the router at 3c.0000.00c0.047d are accepted. All other packets are implicitly denied.

access-list 866 permit 3c.0000.00c0.047d
interface ethernet 0
ipx router-filter 866
Related Commands

access-list (extended)
access-list (standard)
ipx input-network-filter
ipx output-network-filter

ipx router-sap-filter

To filter Service Advertising Protocol (SAP) messages received from a particular router, use the ipx router-sap-filter interface configuration command. To remove the filter, use the no form of this command.

ipx router-sap-filter access-list-number
no ipx router-sap-filter
access-list-number

Syntax Description
access-list-number Number of the access list. All incoming service advertisements are filtered by the entries in this access list. The argument access-list-number is a decimal number from 1000 to 1099.
Default

No filters are predefined.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

You can issue only one ipx router-sap-filter command on each interface.

Example

In the following example, the Cisco IOS software will receive service advertisements only from router aa.0207.0104.0874:

access-list 1000 permit aa.0207.0104.0874
access-list 1000 deny -1
interface ethernet 0
ipx router-sap-filter 1000
Related Commands

access-list (SAP filtering)
ipx input-sap-filter
ipx output-sap-filter
ipx sap
show ipx interface

ipx routing

To enable IPX routing, use the ipx routing global configuration command. To disable IPX routing, use the no form of this command.

ipx routing [node]
no ipx routing

Syntax Description
node (Optional) Node number of the router. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx). It must not be a multicast address.

If you omit node, the Cisco IOS software uses the hardware MAC address currently assigned to it as its node address. This is the MAC address of the first Ethernet, Token Ring, or FDDI interface card. If no satisfactory interfaces are present in the router (such as only serial interfaces), you must specify node.

Default

Disabled

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx routing command enables IPX Routing Information Protocol (RIP) and Service Advertising Protocol (SAP) services.

If you omit the argument node and if the MAC address later changes, the IPX node address automatically changes to the new address. However, connectivity may be lost between the time that the MAC address changes and the time that the IPX clients and servers learn the router's new address.

If you plan to use DECnet and IPX routing concurrently on the same interface, you should enable DECnet router first, then enable IPX routing without specifying the optional MAC node number. If you enable IPX before enabling DECnet routing, routing for IPX will be disrupted.

Example

The following example enables IPX routing:

ipx routing
Related Command

ipx network

ipx sap

To specify static Service Advertising Protocol (SAP) entries, use the ipx sap global configuration command. To remove static SAP entries, use the no form of this command.

ipx sap service-type name network.node socket hop-count
no ipx sap service-type name network.node socket hop-count

Syntax Description
service-type SAP service-type number. Table 47 earlier in this chapter lists some IPX SAP services.
name Name of the server that provides the service.
network.node Network number and node address of the server.

The argument network is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD. You do not need to specify leading zeros in the network number. For example, for the network number 000000AA you can enter AA.

The argument node is the node number of the target Novell server. This is a 48-bit value represented by a dotted triplet of four-digit hexadecimal numbers (xxxx.xxxx.xxxx).

socket Socket number for this service. Table 45 earlier in this chapter lists some IPX socket numbers.
hop-count Number of hops to the server.
Default

Disabled

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx sap command allows you to add static entries into the SAP table. Each entry has a SAP service associated with it. Static SAP assignments always override any identical entries in the SAP table that are learned dynamically, regardless of hop count. The router will not announce a static SAP entry unless it has a route to that network.

Example

In the following example, the route to JOES_SERVER is not yet learned, so the system displays an informational message. The JOES_SERVER service will not be announced in the regular SAP updates until the Cisco IOS software learns the route to it either by means of a RIP update from a neighbor or an ipx sap command.

ipx sap 107 MAILSERV 160.0000.0c01.2b72 8104 1
ipx sap 4 FILESERV 165.0000.0c01.3d1b 451 1
ipx sap 143 JOES_SERVER A1.0000.0c01.1234 8170 2
no route to A1, JOES_SERVER won't be announced until route is learned
Related Commands

ipx input-sap-filter
ipx output-sap-filter
ipx router-sap-filter
show ipx servers

ipx sap-incremental

To send Service Advertising Protocol (SAP) updates only when a change occurs in the SAP table, use the ipx sap-incremental interface configuration command. To send periodic SAP updates, use the no form of this command.

ipx sap-incremental eigrp autonomous-system-number [rsup-only]
no ipx sap-incremental eigrp autonomous-system-number [rsup-only]

Syntax Description
eigrp autonomous-system-number IPX Enhanced IGRP autonomous system number. It can be a decimal integer from 1 to 65535.
rsup-only (Optional) Indicates that the system uses Enhanced IGRP on this interface to carry reliable SAP update information only. RIP routing updates are used, and Enhanced IGRP routing updates are ignored.
Default

Enabled on serial interfaces
Disabled on LAN media (Ethernet, Token Ring, FDDI)

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

To use the ipx sap-incremental command, you must enable Enhanced IGRP. This is the case even if you want to use only RIP routing. You must do this because the incremental SAP feature requires the Enhanced IGRP reliable transport mechanisms.

With this functionality enabled, if an IPX Enhanced IGRP peer is found on the interface, SAP updates will be sent only when a change occurs in the SAP table. Periodic SAP updates are not sent. When no IPX Enhanced IGRP peer is present on the interface, periodic SAPs are always sent, regardless of how this command is set.

If you configure the local router to send incremental SAP updates on an Ethernet, and if the local device has at least one IPX Enhanced IGRP neighbor and any servers, clients, or routers that do not have IPX Enhanced IGRP configured on the Ethernet interface, these devices will not receive complete SAP information from the local router.

If the incremental sending of SAP updates on an interface is configured and no IPX Enhanced IGRP peer is found, SAP updates will be sent periodically until a peer is found. Then, updates will be sent only when changes occur in the SAP table.

To take advantage of Enhanced IGRP's incremental SAP update mechanism while using the RIP routing protocol instead of the Enhanced IGRP routing protocol, specify the rsup-only keyword. SAP updates are then sent only when changes occur, and only changes are sent. Use this feature only when you want to use RIP routing.

Example

The following example sends SAP updates on Ethernet interface 0 only when there is a change in the SAP table:

interface ethernet 0
ipx sap-incremental eigrp 200

ipx sap-interval

To configure less frequent Service Advertising Protocol (SAP) updates over slow links, use the ipx sap-interval interface configuration command. To return to the default value, use the no form of this command.

ipx sap-interval interval
no ipx sap-interval

Syntax Description
interval Interval, in minutes, between SAP updates sent by the Cisco IOS software. The default value is 1 minute. If interval is 0, periodic updates are never sent.
Default

1 minute

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Setting the interval at which SAP updates are sent is most useful on limited-bandwidth, point-to-point links, or on X.25 interfaces.

You should ensure that all IPX servers and routers on a given network have the same SAP interval. Otherwise, they may decide that a server is down when it is really up.

It is not possible to change the interval at which SAP updates are sent on most PC-based servers. This means that you should never change the interval for an Ethernet or Token Ring network that has servers on it.

Setting the interval to zero means that periodic SAP updates are never sent. It is recommended that you never do this. If you set the interval to zero, routers that are inaccessible for any reason when a server powers up or shuts down will miss that event, and will either fail to learn about new servers or fail to detect that the server shut down.

Example

In the following example, SAP updates are sent (and expected) on serial interface 0 every 5 minutes:

interface serial 0
ipx sap-interval 5
Related Command

ipx output-sap-delay

ipx sap-max-packetsize

To configure the maximum packet size of Service Advertising Protocol (SAP) updates sent out the interface, use the ipx sap-max-packetsize interface configuration command. To restore the default packet size, use the no form of this command.

ipx sap-max-packetsize bytes
no ipx sap-max-packetsize bytes

Syntax Description
bytes Maximum packet size in bytes. The default is 480 bytes, which allows for 7 servers (64 bytes each), plus 32 bytes of IPX network and SAP header information.
Default

480 bytes

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The maximum size is for the IPX packet including the IPX network and SAP header information. For example, to allow 10 servers per SAP packet, you would configure (32 + (10 x 64)), or 672 bytes for the maximum packet size.

You are responsible for guaranteeing that the maximum packet size does not exceed the allowed maximum size of packets for the interface.

Example

The following example sets the maximum SAP update packet size to 672 bytes:

ipx sap-max-packetsize 672
Related Command

ipx rip-max-packetsize

ipx sap-multiplier

To configure the interval at which a network's or server's Service Advertising Protocol (SAP) entry ages out, use the ipx sap-multiplier interface configuration command. To restore the default interval, use the no form of this command.

ipx sap-multiplier multiplier
no ipx sap-multiplier multiplier

Syntax Description
multiplier Multiplier used to calculate the interval at which to age out SAP routing table entries. This can be any positive integer. The value you specify is multiplied by the SAP update interval to determine the aging-out interval. The default is three times the SAP update interval.
Default

Three times the SAP update interval.

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

All routers on the same physical cable should use the same multiplier value.

Example

In the following example, in a configuration where SAP updates are sent once every 1 minute, the interval at which SAP entries age out is set to 10 minutes:

interface ethernet 0
ipx sap-multiplier 10
Related Command

ipx sap-max-packetsize

ipx sap-queue-maximum

To configure the maximum length of the queue of pending input Service Advertising Protocol (SAP) GNS requests and SAP query packets, use the ipx sap-queue-maximum global configuration command. To return to the default value, use the no form of this command.

ipx sap-queue-maximum number
no ipx sap-queue-maximum

Syntax Description
number Maximum length of the queue of pending SAP requests. By default, there is no limit to the number of pending SAP requests that the Cisco IOS software stores in this queue.
Default

No maximum queue size

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The Cisco IOS software maintains a list of SAP requests to process, including all pending GNS queries from clients attempting to reach servers. When the network is restarted, the software can be inundated with hundreds of requests for servers. Most of these can be repeated requests from the same clients. The ipx sap-queue-maximum command allows you to configure the maximum length allowed for the pending SAP requests queue. Packets received when the queue is full are dropped.

Example

The following example sets the length of the queue of pending SAP requests to 20:

ipx sap-queue-maximum 20

ipx source-network-update

To repair corrupted network numbers, use the ipx source-network-update interface configuration command. To disable this feature, use the no form of this command.

ipx source-network-update
no ipx source-network-update

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

In some early implementations of IPX client software, it was possible for the client's network number to become corrupted. The ipx source-network-update command repairs this number by setting the source network field of any packet on the local network that has a hop count of zero.

You must disable fast switching with the no ipx route-cache command before using the ipx source-network-update command.

 
Caution The ipx source-network-update command interferes with the proper working of OS/2 Requestors. Do not use this command in a network that has OS/2 Requestors.  
Caution Do not use the ipx source-network-update command on interfaces on which NetWare (NetWare 3.1x or 4.0 or later) servers are using internal network numbers.
Example

In the following example, corrupted network numbers on serial interface 0 are repaired:

interface serial 0
no ipx route-cache
ipx source-network-update
Related Command

ipx route-cache

ipx split-horizon eigrp

To configure split horizon, use the ipx split-horizon eigrp interface configuration command. To disable split horizon, use the no form of this command.

ipx split-horizon eigrp autonomous-system-number
no ipx split-horizon eigrp
autonomous-system-number

Syntax Description
autonomous-system-number Enhanced IGRP autonomous system number. It can be a decimal integer from 1 to 65535.
Default

Enabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

When split horizon is enabled, Enhanced IGRP update and query packets are not sent for destinations that have next hops on this interface. This reduces the number of Enhanced IGRP packets on the network.

Split horizon blocks information about routes from being advertised by a router out any interface from which that information originated. This behavior usually optimizes communication among multiple routers, particularly when links are broken. However, with nonbroadcast networks, such as Frame Relay and SMDS, situations can arise for which this behavior is less than ideal. For these situations, you may wish to disable split horizon.

Example

The following example disables split horizon on serial interface 0:

interface serial 0
no ipx split-horizon eigrp 200 

ipx spx-idle-time

To set the amount of time to wait before starting the spoofing of SPX keepalive packets following inactive data transfer, use the ipx spx-idle-time interface configuration command. To disable the current delay time set by this command, use the no form of this command.

ipx spx-idle-time delay-in-seconds
no ipx spx-idle-time

Syntax Description
delay-in-seconds The amount of time in seconds to wait before spoofing SPX keepalives after data transfer has stopped.
Default

60 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.0.

This command sets the elapsed time in seconds after which spoofing of keepalive packets occurs, following the end of data transfer; that is, after the acknowledgment and sequence numbers of the data being transferred have stopped increasing. By default, SPX keepalive packets are sent from servers to clients every 15 to 20 seconds.

If you turn on SPX spoofing and you do not set an idle time, the default of 60 seconds is assumed. This means that the dialer idle time begins when SPX spoofing begins. For example, if the dialer idle time is 3 minutes, the elapse time before SPX spoofing begins is 4 minutes: 3 minutes of dialer idle time plus 1 minute of SPX spoofing idle time.

For this command to take effect, you must first use the ipx spx-spoof interface configuration command to enable SPX spoofing for the interface.

Example

The following example enables spoofing on serial interface 0 and sets the idle timer to 300 seconds:

interface serial 0
ipx spx-spoof 
no ipx route-cache
ipx spx-idle-time 300
Related Commands

ipx spx-spoof
show ipx spx-spoof

ipx spx-spoof

To configure the Cisco IOS software to respond to a client or server's SPX keepalive packets on behalf of a remote system so that a dial-on-demand (DDR) link will go idle when data has stopped being transferred, use the ipx spx-spoof interface configuration command. To disable spoofing, use the no form of this command.

ipx spx-spoof
no ipx spx-spoof

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.0.

You can use the ipx spx-spoof command on any serial dialer or point-to-point interface. Fast switching and autonomous switching must be disabled on the interface; otherwise, SPX spoofing will not be permitted.

SPX keepalive packets are sent from servers to clients every 15-20 seconds after a client session has been idle for a certain period of time following the end of data transfer and after which only unsolicited acknowledgments are sent. The idle time may vary, depending on parameters set by the client and server.

Because of acknowledgment packets, a session would never go idle on a DDR link. On pay-per-packet or byte networks, these keepalive packets can incur for the customer large phone connection charges for idle time. You can prevent these calls from being made by configuring the software to respond to the server's keepalive packets on a remote client's behalf. This is sometimes referred to as "spoofing the server."

You can use the ipx spx-idle-time command to set the elapsed time in seconds after which spoofing of keepalive packets occurs, following the end of data transfer. If you turn on SPX spoofing and you do not set an idle time, the default of 60 seconds is assumed. This means that the dialer idle time begins when SPX spoofing begins. For example, if the dialer idle time is 3 minutes, the elapse time before the line goes "idle-spoofing" is 4 minutes: 3 minutes of dialer idle time plus 1 minute of SPX spoofing idle time.

Example

The following example enables spoofing on serial interface 0:

interface serial 0
ipx spx-spoof 
no ipx route-cache
Related Commands

ipx throughput
show ipx spx-spoof

ipx throughput

To configure the throughput, use the ipx throughput interface configuration command. To revert to the current bandwidth setting for the interface, use the no form of this command.

ipx throughput bits-per-second
no ipx throughput bits-per-second

Syntax Description
bits-per-second Throughput, in bits per second.
Default

Current bandwidth setting for the interface

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The value you specify with the ipx throughput command overrides the value measured by IPXWAN when it starts. This value is also supplied to NLSP for use in its metric calculations.

Example

The following example changes the throughput to 1,000,000 bits per second:

ipx throughput 1000000
Related Command

ipx ipxwan

ipx triggered-rip-delay

To set the interpacket delay for triggered RIP updates sent on a single interface, use the ipx triggered-rip-delay interface configuration command. To return to the default delay, use the no form of this command.

ipx triggered-rip-delay delay
no ipx triggered-rip-delay [delay]

Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet RIP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The interpacket delay is the delay between the individual packets sent in a multiple-packet routing update. A triggered routing update is one that the system sends in response to a "trigger" event, such as a request packet, interface up/down, route up/down, or server up/down.

The ipx triggered-rip-delay command sets the interpacket delay for triggered routing updates sent on a single interface. The delay value set by this command overrides the delay value set by the ipx output-rip-delay or ipx default-output-rip-delay command for triggered routing updates sent on the interface.

If the delay value set by the ipx output-rip-delay or ipx default-output-rip-delay command is high, then we strongly recommend a low delay value for triggered routing updates so that updates triggered by special events are sent in a more timely manner than periodic routing updates.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX machines. These machines may lose RIP updates because they process packets more slowly than the router sends them. The delay imposed by this command forces the router to pace its output to the slower-processing needs of these IPX machines.

The default delay on a NetWare 3.11 server is about 100 ms.

When you do not set the interpacket delay for triggered routing updates, the system uses the delay specified by the ipx output-rip-delay or ipx default-output-rip-delay command for both periodic and triggered routing updates.

When you use the no form of the ipx triggered-rip-delay command, the system uses the global default delay set by the ipx default-triggered-rip-delay command for triggered RIP updates, if it is set. If it is not set, the system uses the delay set by the ipx output-rip-delay or ipx default-output-rip-delay command for triggered RIP updates, if set. Otherwise, the system uses the initial default delay as described in the "Default" section.

This command is also useful on limited bandwidth point-to-point links, or X.25 and Frame Relay multipoint interfaces.

Example

The following example sets an interpacket delay of 55 ms for triggered routing updates sent on interface FDDI 0:

int FDDI 0
ipx triggered-rip-delay 55
Related Commands

ipx default-output-rip-delay
ipx default-triggered-rip-delay
ipx output-rip-delay

ipx triggered-sap-delay

To set the interpacket delay for triggered Service Advertising Protocol (SAP) updates sent on a single interface, use the ipx triggered-sap-delay interface configuration command. To return to the default delay, use the no form of this command.

ipx triggered-sap-delay delay
no ipx triggered-sap-delay
[delay]

Syntax Description
delay Delay, in milliseconds, between packets in a multiple-packet SAP update. The default delay is 55 ms. Novell recommends a delay of 55 ms.
Default

55 ms

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

The interpacket delay is the delay between the individual packets sent in a multiple-packet SAP update. A triggered SAP update is one that the system sends in response to a "trigger" event, such as a request packet, interface up/down, route up/down, or server up/down.

The ipx triggered-sap-delay command sets the interpacket delay for triggered updates sent on a single interface. The delay value set by this command overrides the delay value set by the ipx output-sap-delay or ipx default-output-sap-delay command for triggered updates sent on the interface.

If the delay value set by the ipx output-sap-delay or ipx default-output-sap-delay command is high, then we strongly recommend a low delay value for triggered updates so that updates triggered by special events are sent in a more timely manner than periodic updates.

Novell recommends a delay of 55 ms for compatibility with older and slower IPX servers. These servers may lose SAP updates because they process packets more slowly than the router sends them. The delay imposed by this command forces the router to pace its output to the slower-processing needs of these IPX servers.

The default delay on a NetWare 3.11 server is about 100 ms.

When you do not set the interpacket delay for triggered updates, the system uses the delay specified by the ipx output-sap-delay or ipx default-output-sap-delay command for both periodic and triggered SAP updates.

When you use the no form of the ipx triggered-sap-delay command, the system uses the global default delay set by the ipx default-triggered-sap-delay command for triggered SAP updates, if it is set. If it is not set, the system uses the delay set by the ipx output-sap-delay or ipx default-output-sap-delay command for triggered SAP updates, if set. Otherwise, the system uses the initial default delay as described in the "Default" section.

This command is also useful on limited bandwidth point-to-point links, or X.25 and Frame Relay multipoint interfaces.

Example

The following example sets an interpacket delay of 55 ms for triggered SAP updates sent on interface FDDI 0:

int FDDI 0
ipx triggered-sap-delay 55
Related Commands

ipx default-output-sap-delay
ipx default-triggered-sap-delay
ipx output-sap-delay

ipx type-20-helpered

To forward IPX type 20 propagation packet broadcasts to specific network segments, use the ipx type-20-helpered global configuration command. To disable this function, use the no form of this command.

ipx type-20-helpered
no ipx type-20-helpered

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The ipx type-20-helpered command disables the input and output of type 20 propagation packets as done by the ipx type-20-propagation interface configuration command.

The ipx type-20-propagation command broadcasts type 20 packets to all nodes on the network and imposes a hop-count limit of eight routers for broadcasting these packets. These functions are in compliance with the Novell IPX router specification. In contrast, the ipx type-20-helpered command broadcasts type 20 packets to only those nodes indicated by the ipx helper-address interface configuration command and extends the hop-count limit to 16 routers.

Use of the ipx type-20-helpered command does not comply with the Novell IPX router specification; however, you may need to use this command if you have a mixed internetwork that contains routers running Software Release 9.1 and routers running later versions of Cisco IOS software.

Example

The following example forwards IPX type 20 propagation packet broadcasts to specific network segments:

interface ethernet 0
ipx network aa
ipx type-20-helpered
ipx helper-address bb.ffff.ffff.ffff
Related Commands

ipx helper-address
ipx type-20-propagation

ipx type-20-input-checks

To restrict the acceptance of IPX type 20 propagation packet broadcasts, use the ipx type-20-input-checks global configuration command. To remove these restrictions, use the no form of this command.

ipx type-20-input-checks
no ipx type-20-input-checks

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

By default, the Cisco IOS software is configured to block type 20 propagation packets. When type 20 packet handling is enabled on multiple interfaces, you can use the ipx type-20-input-checks command to impose additional restrictions on the acceptance of type 20 packets. Specifically, the software will accept type 20 propagation packets only on the single network that is the primary route back to the source network. Similar packets received via other networks will be dropped. This behavior can be advantageous in redundant topologies, because it reduces unnecessary duplication of type 20 packets.

Example

The following example imposes additional restrictions on incoming type 20 broadcasts:

ipx type-20-input-checks
Related Commands

ipx type-20-output-checks
ipx type-20-propagation

ipx type-20-output-checks

To restrict the forwarding of IPX type 20 propagation packet broadcasts, use the ipx type-20-output-checks global configuration command. To remove these restrictions, use the no form of this command.

ipx type-20-output-checks
no ipx type-20-output-checks

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

By default, the Cisco IOS software is configured to block type 20 propagation packets. When type 20 packet handling is enabled on multiple interfaces, you can use the ipx type-20-output-checks command to impose additional restrictions on outgoing type 20 packets. Specifically, the software will forward these packets only to networks that are not routes back to the source network. (The software uses the current routing table to determine routes.) This behavior can be advantageous in redundant topologies, because it reduces unnecessary duplication of type 20 packets.

Example

The following example imposes restrictions on outgoing type 20 broadcasts:

ipx type-20-output-checks
Related Commands

ipx type-20-input-checks
ipx type-20-propagation

ipx type-20-propagation

To forward IPX type 20 propagation packet broadcasts to other network segments, use the ipx type-20-propagation interface configuration command. To disable both the reception and forwarding of type 20 broadcasts on an interface, use the no form of this command.

ipx type-20-propagation
no ipx type-20-propagation

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Routers normally block all broadcast requests. To allow input and output of type 20 propagation packets on an interface, use the ipx type-20-propagation command. Note that type 20 packets are subject to loop detection and control as specified in the IPX router specification.

Additional input and output checks may be imposed by the ipx type-20-input-checks and
ipx type-20-output-checks commands.

IPX type 20 propagation packet broadcasts are subject to any filtering defined by the ipx helper-list command.

Examples

The following example enables both the reception and forwarding of type 20 broadcasts on Ethernet interface 0:

interface ethernet 0
ipx type-20-propagation

The following example enables the reception and forwarding of type 20 broadcasts between networks 123 and 456, but does not enable reception and forwarding of these broadcasts to and from network 789:

interface ethernet 0
ipx network 123
ipx type-20-propagation
!
interface ethernet 1
ipx network 456
ipx type-20-propagation
!
interface ethernet 2
ipx network 789
Related Commands

ipx helper-list
ipx type-20-input-checks
ipx type-20-output-checks

ipx update-time

To adjust the IPX routing update timers, use the ipx update-time interface configuration command. To restore the default value, use the no form of this command.

ipx update-time interval
no ipx update-time

Syntax Description
interval Interval, in seconds, at which IPX routing updates are sent. The default is 60 seconds. The minimum interval is 10 seconds.
Default

60 seconds

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The ipx update-time command sets the routing update timer on a per-interface basis.

Routers exchange information about routes by sending broadcast messages when they are started up and shut down, and periodically while they are running. The ipx update-time command enables you to modify the periodic update interval. By default, this interval is 60 seconds (this default is defined by Novell).

You can set RIP timers only in a configuration in which all routers are our routers or in which the IPX routers allow configurable timers. The timers should be the same for all devices connected to the same cable segment.

The update value you choose affects the internal IPX timers as follows:

Example

The following example sets the update timers on two interfaces in a router. The update timer granularity would be 20 seconds because this is the lowest value specified.

interface serial 0
ipx update-time 40
interface ethernet 0
ipx update-time 20
Related Command

show ipx interface

ipx watchdog-spoof

To have the Cisco IOS software respond to a server's watchdog packets on behalf of a remote client, use the ipx watchdog-spoof interface configuration command. To disable spoofing, use the no form of this command.

ipx watchdog-spoof
no ipx watchdog-spoof

Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

Interface configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

You can use the ipx watchdog-spoof command only on a serial interface on which dial-on-demand routing (DDR) has been enabled. Also, fast switching and autonomous switching must be disabled on the interface.

IPX watchdog packets are keepalive packets that are sent from servers to clients after a client session has been idle for approximately 5 minutes. On a DDR link, this would mean that a call would be made every 5 minutes, regardless of whether there were data packets to send. You can prevent these calls from being made by configuring the software to respond to the server's watchdog packets on a remote client's behalf. This is sometimes referred to as "spoofing the server."

Example

The following example enables spoofing on serial interface 0:

interface serial 0
ipx watchdog-spoof
no ipx route-cache
Related Commands

ipx route-cache
ipx spx-spoof

log-adjacency-changes

To generate a log message when an NLSP adjacency changes state (up or down), use the log-adjacency-changes router configuration command. Use the no form of this command to disable this function.

log-adjacency-changes
no log-adjacency-changes

Syntax Description

This command has no arguments or keywords.

Default

Adjacency changes are not logged.

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

This command allows the monitoring of NLSP adjacency state changes. This may be very useful when monitoring large networks. Messages are logged using the system error message facility. Messages are of the form:

%CLNS-5-ADJCHANGE: NLSP: Adjacency to 0000.0000.0034 (Serial0) Up, new adjacency

%CLNS-5-ADJCHANGE: NLSP: Adjacency to 0000.0000.0034 (Serial0) Down, hold time expired

Example

The following example instructs the router to log adjacency changes for the NLSP process area1:

ipx router nlsp area1
log-adjacency-changes
Related Command

A dagger (+) indicates that the command is documented outside this chapter.

logging+

log-neighbor-changes

To enable the logging of changes in Enhanced IGRP neighbor adjacencies, use the log-neighbor-changes router configuration command.

log-neighbor-changes
no log-neighbor-changes

Syntax Description

This command has no arguments or keywords.

Default

No adjacency changes are logged.

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Enable the logging of neighbor adjacency changes in order to monitor the stability of the routing system and to help detect problems. Log messages are of the following form:

%DUAL-5-NBRCHANGE: IPX EIGRP as-number: Neighbor address (interface) is state: reason

where the following is true:

as-number Autonomous system number
address Neighbor address
State Up or down
reason Reason for change
Example

The following configuration will log neighbor changes for Enhanced IGRP process 209:

ipx router eigrp 209
log-neighbor-changes
Related Command

ipx router

lsp-gen-interval

To set the minimum interval at which link-state packets (LSPs) are generated, use the lsp-gen-interval router configuration command. To restore the default interval, use the no form of this command.

lsp-gen-interval seconds
no lsp-gen-interval seconds

Syntax Description
seconds Minimum interval, in seconds. It can be a number in the range
0 to 120. The default is 5 seconds.
Default

5 seconds

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The lsp-gen-interval command controls the rate at which LSPs are generated on a per-LSP basis. For instance, if a link is changing state at a high rate, the default value of the LSP generation interval limits the signaling of this change to once every 5 seconds. Because the generation of an LSP may cause all routers in the area to perform the SPF calculation, controlling this interval may have area-wide impact. Raising this interval can reduce the load on the network imposed by a rapidly changing link.

Example

The following example sets the minimum interval at which LSPs are generated to 10 seconds:

lsp-gen-interval 10
Related Commands

ipx router nlsp
spf-interval

lsp-mtu

To set the maximum size of a link-state packet (LSP) generated by the Cisco IOS software, use the lsp-mtu router configuration command. To restore the default MTU size, use the no form of this command.

lsp-mtu bytes
no lsp-mtu bytes

Syntax Description
bytes MTU size, in bytes. It can be a decimal number in the range 512 to 4096. The default is 512 bytes.
Default

512 bytes

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

You can increase the LSP MTU if there is a very large amount of information generated by a single router, because each device is limited to approximately 250 LSPs. In practice, this should never be necessary.

The LSP MTU must never be larger than the smallest MTU of any link in the area. This is because LSPs are flooded throughout the area.

The lsp-mtu command limits the size of LSPs generated by this router only; the Cisco IOS software can receive LSPs of any size up to the maximum.

Example

The following example sets the maximum LSP size to 1500 bytes:

lsp-mtu 1500
Related Command

ipx router nlsp

lsp-refresh-interval

To set the link-state packet (LSP) refresh interval, use the lsp-refresh-interval router configuration command. To restore the default refresh interval, use the no form of this command.

lsp-refresh-interval seconds
no lsp-refresh-interval seconds

Syntax Description
seconds Refresh interval, in seconds. It can be a value in the range 1 to 50000 seconds. The default is 7200 seconds (2 hours).
Default

7,200 seconds (2 hours)

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The refresh interval determines the rate at which the Cisco IOS software periodically transmits the route topology information that it originates. This is done in order to keep the information from becoming too old. By default, the refresh interval is 2 hours.

LSPs must be periodically refreshed before their lifetimes expire. The refresh interval must be less than the LSP lifetime specified with the max-lsp-lifetime router configuration command. Reducing the refresh interval reduces the amount of time that undetected link state database corruption can persist at the cost of increased link utilization. (This is an extremely unlikely event, however, because there are other safeguards against corruption.) Increasing the interval reduces the link utilization caused by the flooding of refreshed packets (although this utilization is very small).

Example

The following example changes the LSP refresh interval to 10,800 seconds (3 hours):

lsp-refresh-interval 10800 
Related Commands

ipx router nlsp
max-lsp-lifetime

max-lsp-lifetime

To set the maximum time that link-state packets (LSPs) persist without being refreshed, use the max-lsp-lifetime router configuration command. To restore the default time, use the no form of this command.

max-lsp-lifetime seconds
no max-lsp-lifetime seconds

Syntax Description
seconds Lifetime of LSP, in seconds. It can be a number in the range
1 to 50000 seconds. The default is 7500 seconds.
Default

7500 seconds (2 hours, 5 minutes)

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

You might need to adjust the maximum LSP lifetime if you change the LSP refresh interval with the lsp-refresh-interval router configuration command. The maximum LSP lifetime must be greater than the LSP refresh interval.

Example

The following example sets the maximum time that the LSP persists to 11,000 seconds (more than 3 hours):

max-lsp-lifetime 11000
Related Commands

ipx router nlsp
lsp-refresh-interval

netbios access-list

To define an IPX NetBIOS FindName access list filter, use the netbios access-list global configuration command. To remove a filter, use the no form of the command.

netbios access-list host name {deny | permit} string
no netbios access-list host
name {deny | permit} string

netbios access-list bytes
name {deny | permit} offset byte-pattern
no netbios access-list bytes
name {deny | permit} offset byte-pattern

Syntax Description
host Indicates that the following argument is the name of a NetBIOS access filter previously defined with one or more netbios access-list host commands.
bytes Indicates that the following argument is the name of a NetBIOS access filter previously defined with one or more netbios access-list bytes commands.
name Name of the access list being defined. The name can be an alphanumeric string.
deny Denies access if the conditions are matched.
permit Permits access if the conditions are matched.
string Character string that identifies one or more NetBIOS host names. It can be up to 14 characters long. The argument string can include the following wildcard characters:

· *--Match one or more characters. You can use this wildcard character only at the end of a string.

· ?--Match any single character.

offset Decimal number that indicates the number of bytes into the packet at which the byte comparison should begin. An offset of 0 indicates the beginning of the NetBIOS packet header, which is at the end of the IPX header.
byte-pattern Hexadecimal pattern that represents the byte pattern to match. It can be up to 16 bytes (32 digits) long and must be an even number of digits. The argument byte-pattern can include the double asterisk (**) wildcard character to match any digits for that byte.
Default

No filters are predefined.

Command Mode

Global configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Keep the following points in mind when configuring IPX NetBIOS access control:

These filters apply only to IPX NetBIOS FindName packets. They have no effect on LLC2 NetBIOS packets.

To delete an IPX NetBIOS access list, specify the minimum number of keywords and arguments needed to delete the proper list. For example, to delete the entire list, use the following command:

no netbios access-list {host | bytes} name

To delete a single entry from the list, use the following command:

no netbios access-list host name {permit | deny} string
Examples

The following example defines the IPX NetBIOS access list engineering:

netbios access-list host engineering permit eng-ws1 eng-ws2 eng-ws3

The following example removes a single entry from the engineering access list:

netbios access-list host engineering deny eng-ws3

The following example removes the entire engineering NetBIOS access list:

no netbios access-list host engineering 
Related Commands

ipx netbios input-access-filter
ipx netbios output-access-filter
show ipx interface

network

To enable Enhanced IGRP, use the network router configuration command. To disable Enhanced IGRP, use the no form of this command.

network {network-number | all}
no network {
network-number | all}

Syntax Description
network-number IPX network number.
all Enables the routing protocol for all IPX networks configured on the router.
Default

Disabled

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

Use the network command to enable the routing protocol specified in the ipx router command on each network.

Example

The following commands disable RIP on network 10 and enable Enhanced IGRP on networks 10 and 20:

ipx router rip
no network 10
ipx router eigrp 12
network 10
network 20
Related Command

ipx router

ping (privileged)

To check host reachability and network connectivity, use the ping privileged EXEC command.

ping [ipx] [network.node]
Syntax Description
ipx (Optional) Specifies the IPX protocol.
network.node (Optional) Address of the system to ping.
Command Mode

Privileged EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The privileged ping (IPX echo) command provides a complete ping facility for users who have system privileges.

The ping command with ipx ping-default set to Cisco works only on our routers running Software Release 8.2 or later.

Novell IPX devices that support the echo function defined in version 1.0 of the NLSP specification will respond to this command if you answer Y to the prompt Novell Standard Echo that is displayed when you use the privileged ping command or if ipx ping-default is set to Novell. If you answer N to this prompt, Novell IPX devices will not respond.

To abort a ping session, type the escape sequence. By default, this is Ctrl-^ X. You enter this by simultaneously pressing the Ctrl, Shift, and 6 keys, letting go, and then pressing the X key.

Table 49 describes the test characters displayed in ping responses.


Table  49: Ping Test Characters
Character Meaning
! Each exclamation point indicates the receipt of a reply from the target address.
. Each period indicates the network server timed out while waiting for a reply from the target address.
U A destination unreachable error PDU was received.
C A congestion experienced packet was received.
I User interrupted the test.
? Unknown packet type.
& Packet lifetime exceeded.
Sample Display

The following sample display shows input to and output from the ping command:

Router# ping
Protocol [ip]: ipx
Target IPX address: 211.0000.0c01.f4cf
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Verbose [n]:
Novell Standard Echo [n]:
Type escape sequence to abort.
Sending 5 100-byte IPX echoes to 211.0000.0c01.f4cf, timeout is 2 seconds.
!!!!!
Success rate is 100 percent (0/5)
Related Commands

ipx ping-default
ping (user)

ping (user)

To check host reachability and network connectivity, use the ping user EXEC command.

ping ipx {host | address}
Syntax Description
ipx Specifies the IPX protocol.
host Host name of system to ping.
address Address of system to ping.
Command Mode

User EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

The user-level ping (packet internet groper function) command provides a basic ping facility for users who do not have system privileges. This command is equivalent to the nonverbose form of the privileged ping command. It sends five 100-byte ping packets.

The ping command with ipx ping-default set to Cisco works only on our routers running Cisco IOS software Release 8.2 or later. Novell IPX devices will not respond to this command.

You cannot ping a device from itself except on Cisco 7000 systems.

If the system cannot map an address for a host name, it will return an "%Unrecognized host or address" error message.

To abort a ping session, type the escape sequence. By default, this is Ctrl-^ X. You enter this by simultaneously pressing the Ctrl, Shift, and 6 keys, letting go, and then pressing the X key.

Table 49 in the ping (privileged) command section describes the test characters displayed in ping responses.

Sample Display

The following sample display shows input to and output from the user ping command:

Router> ping ipx 211.0000.0c01.f4cf

Type escape sequence to abort.
Sending 5, 100-byte Novell Echoes to 211.0000.0c01.f4cf, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Related Commands

ipx ping-default
ping (privileged)

prc-interval

To control the holddown period between partial route calculations, use the prc-interval router configuration command. To restore the default interval, use the no form of this command.

prc-interval seconds
no prc-interval seconds

Syntax Description
seconds Minimum amount of time between partial route calculations, in seconds. It can be a number in the range 1 to 120. The default is 5 seconds.
Default

5 seconds

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

The prc-interval command controls how often the Cisco IOS software can performs a partial route (PRC) calculation. The PRC calculation is processor-intensive. Therefore, it may be useful to limit how often this is done, especially on slower router models. Increasing the PRC interval reduces the processor load of the router, but potentially slows down the rate of convergence.

This command is analogous to the spf-interval command, which controls the holddown period between shortest path first calculations.

Example

The following example sets the PRC calculation interval to 20 seconds:

prc-interval 20
Related Commands

ipx router nlsp
spf-interval

redistribute

To redistribute from one routing domain into another, and vice versa, use one of the following redistribute router configuration command. To disable this feature, use the no form of the commands.

For Enhanced IGRP or RIP environments, use the following command to redistribute from one routing domain into another, and vice versa:

redistribute {connected | eigrp autonomous-system-number | floating-static | nlsp [tag] | rip
| static}
no redistribute {connected | eigrp autonomous-system-number | floating-static | nlsp [tag] | rip
| static}

For NLSP environments, use the following command to redistribute from one routing domain into another, and vice versa:

redistribute {eigrp autonomous-system-number | nlsp [tag] | rip | static}
[
access-list access-list-number]
no redistribute {eigrp autonomous-system-number | nlsp [tag] | rip | static}
[
access-list access-list-number]

Syntax Description
connected Specifies connected routes.
eigrp autonomous-system-number Specifies the Enhanced IGRP protocol and the Enhanced IGRP autonomous system number. It can be a decimal integer from
1 to 65535.
floating-static Specifies a floating static route. This is a static route that can be overridden by a dynamically learned route.
nlsp [tag] Specifies the NLSP protocol and, optionally, names the NLSP process (tag). The tag can be any combination of printable characters.
rip Specifies the RIP protocol. You can configure only one RIP process on the router. Thus, you cannot redistribute RIP into RIP.
static Specifies static routes.
access-list access-list-number Specifies an NLSP route summary access list. The access-list-number is a decimal number from 1200 to 1299.
Default

Redistribution is enabled between all routing domains except between separate Enhanced IGRP processes.

Redistribution of floating static routes is disabled.

Redistribution between NLSP and Enhanced IGRP is disabled.

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Redistribution provides for routing information generated by one protocol to be advertised in another.

The only connected routes affected by this redistribute command are the routes not specified by the network command.

If you have enabled floating static routes by specifying the floating keyword in the ipx route global configuration command and you redistribute floating static routes into a dynamic IPX routing protocol, any nonhierarchical topology causes the floating static destination to be redistributed immediately via a dynamic protocol back to the originating router, causing a routing loop. This occurs because dynamic protocol information overrides floating static routes. For this reason, automatic redistribution of floating static routes is off by default. If you redistribute floating static routes, you should specify filters to eliminate routing loops.

For NLSP environments, you can use the NLSP redistribute command to configure IPX route aggregation with customized route summarization. Configure IPX route aggregation with customized route summarization in


Note NLSP version 1.1 routers refer to routers that support the route aggregation feature, while NLSP version 1.0 routers refer to routers that do not.

An NLSP process is a router's databases working together to manage route information about an area. NLSP version 1.0 routers are always in the same area. Each router has its own adjacencies, link-state, and forwarding databases. These databases operate collectively as a single process to discover, select, and maintain route information about the area. NLSP version 1.1 routers that exist within a single area also use a single process.

NLSP version 1.1 routers that interconnect multiple areas use multiple processes to discover, select, and maintain route information about the areas they interconnect. These routers manage an adjacencies, link-state, and area address database for each area to which they attach. Collectively, these databases are still referred to as a process. The forwarding database is shared among processes within a router. The sharing of entries in the forwarding database is automatic when all processes interconnect NLSP version 1.1 areas.

Examples

In the following example, RIP routing information is not redistributed:

ipx router eigrp 222
no redistribute rip

In the following example, Enhanced IGRP routes from autonomous system 100 are redistributed into Enhanced IGRP autonomous system 300:

ipx router eigrp 300
redistribute eigrp 100

In the following example, Enhanced IGRP routes from autonomous system 300 are redistributed into the NLSP process area3:

ipx router nlsp area3
redistribute eigrp 300

The following example enables route summarization and redistributes routes learned from one NLSP instance to another. Any routes learned via NLSP a1 that are subsumed by route summary aaaa0000 ffff0000 are not redistributed into NLSP a2. Instead, an aggregated route is generated. Likewise, any routes learned via NLSP a2 that are subsumed by bbbb0000 ffff0000 are not redistributed into NLSP a1--an aggregated route is generated.

ipx routing
ipx internal-network 2000
!
interface ethernet 1
ipx network 1001
ipx nlsp a1 enable
!
interface ethernet 2
ipx network 2001
ipx nlsp a2 enable
!
access-list 1200 deny aaaa0000 ffff0000
access-list 1200 permit -1
access-list 1201 deny bbbb0000 ffff0000
access-list 1201 permit -1
!
ipx router nlsp a1
area-address 1000 fffff000
route-aggregation
redistribute nlsp a2 access-list 1201
!
ipx router nlsp a2
area-address 2000 fffff000
route-aggregation
redistribute nlsp a1 access-list 1200
Related Commands

access-list (NLSP route aggregation filtering)
ipx router

route-aggregation

To enable the generation of aggregated routes in an NLSP area, use the route-aggregation router configuration command. To disable generation, use the no form of this command.

route-aggregation
no route-aggregation

Syntax Description

This command has no arguments or keywords.

Default

Route summarization is disabled by default.

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

When route summarization is disabled, all routes redistributed into an NLSP area will be explicit routes.

When route summarization is enabled, the router uses the access list associated with the redistribute command (if one exists) for the routing process associated with each route as a template for route summarization. Explicit routes that match a range denied by the access list trigger generation of an aggregated route instead. Routes permitted by the access list are redistributed as explicit routes.

If no access list exists, the router instead uses the area address (if one exists) of the routing process associated with each route as a template for route summarization. Explicit routes that match the area address trigger generation of an aggregated route instead.


Note Because an Enhanced IGRP or RIP routing process cannot have an area address, it is not possible to generate aggregated routes without the use of an access list.
Example

The following example enables route summarization between two NLSP areas. Route summarization is based on the area addresses configured for each area.

ipx routing
ipx internal-network 123
!
int e 1
ipx nlsp area1 enable
!
int e 2
ipx nlsp area2 enable
!
ipx router nlsp area1
area-address 1000 fffff000
route-aggregation
!
ipx router nlsp area2
area-address 2000 fffff000
route-aggregation
Related Commands

ipx router nlsp
redistribute

show ipx accounting

To display the active accounting or checkpointed database, use the show ipx accounting EXEC command.

show ipx accounting [checkpoint]
Syntax Description
checkpoint (Optional) Displays entries in the checkpointed database should be displayed.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Sample Display

The following is sample output from the show ipx accounting command:

Router# show ipx accounting
Source                  Destination                Packets           Bytes
0000C003.0000.0c05.6030 0000C003.0260.8c9b.4e33         72            2880
0000C001.0260.8c8d.da75 0000C003.0260.8c9b.4e33         14             624
0000C003.0260.8c9b.4e33 0000C001.0260.8c8d.da75         62            3110
0000C001.0260.8c8d.e7c6 0000C003.0260.8c9b.4e33         20            1470
0000C003.0260.8c9b.4e33 0000C001.0260.8c8d.e7c6         20            1470
Accounting data age is     6

Table 50 describes the fields shown in the display.


Table  50: Show IPX Accounting Field Descriptions
Field Description
Source Source address of the packet.
Destination Destination address of the packet.
Packets Number of packets transmitted from the source address to the destination address.
Bytes Number of bytes transmitted from the source address to the destination address.
Accounting data age is ... Time since the accounting database has been cleared. It can be in one of the following formats: mm, hh:mm, dd:hh, and xw yd, where m is minutes, h is hours, d is days, and w is weeks.
Related Commands

clear ipx accounting
ipx accounting
ipx accounting-list
ipx accounting-threshold
ipx accounting-transits

show ipx cache

To display the contents of the IPX fast-switching cache, use the show ipx cache EXEC command.

show ipx cache
Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Sample Display

The following is sample output from the show ipx cache command:

Router# show ipx cache
Novell routing cache version is 9
Destination          Interface               MAC Header
*1006A               Ethernet 0              00000C0062E600000C003EB0064
*14BB                Ethernet 1              00000C003E2A00000C003EB0064

Table 51 describes the fields shown in the display.


Table  51: Show IPX Cache Field Descriptions
Field Description
Novell routing cache version is ... Number identifying the version of the fast-switching cache table. It increments each time the table changes.
Destination Destination network for this packet. Valid entries are marked by an asterisk (*).
Interface Route interface through which this packet is transmitted.
MAC Header Contents of this packet's MAC header.
Related Commands

clear ipx cache
ipx route-cache

show ipx eigrp interfaces

To display information about interfaces configured for Enhanced IGRP, use the show ipx eigrp interfaces EXEC command.

show ipx eigrp interfaces [type number] [as-number]
Syntax Description
type (Optional) Interface type.
number (Optional) Interface number.
as-number (Optional) Autonomous system number.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.2.

Use the show ipx eigrp interfaces command to determine on which interfaces Enhanced IGRP is active and to find out information about Enhanced IGRP relating to those interfaces.

If an interface is specified, only that interface is displayed. Otherwise, all interfaces on which Enhanced IGRP is running are displayed.

If an autonomous system is specified, only the routing process for the specified autonomous system is displayed. Otherwise, all Enhanced IGRP processes are displayed.

Sample Display

The following is sample output from the show ipx eigrp interfaces command:

Router> show ipx eigrp interfaces
IPX EIGRP interfaces for process 109
                    Xmit Queue    Mean   Pacing Time   Multicast   Pending
Interface   Peers   Un/Reliable   SRTT   Un/Reliable   Flow Timer  Routes
Di0           0         0/0          0      11/434          0          0
Et0           1         0/0        337       0/10           0          0
SE0:1.16      1         0/0         10       1/63         103          0
Tu0           1         0/0        330       0/16           0          0

Table 52 describes the fields shown in the display.


Table 52: Show IPX Enhanced IGRP Interfaces Field Descriptions
Field Description
process 109 Autonomous system number of the process.
Interface Interface name.
Peers Number of neighbors on the interface.
Xmit Queue Count of unreliable and reliable packets queued for transmission.
Mean SRTT Average round-trip time for all neighbors on the interface.
Pacing Time Number of milliseconds to wait after transmitting unreliable and reliable packets.
Multicast Flow Timer Number of milliseconds to wait for acknowledgment of a multicast packet by all neighbors before transmitting the next multicast packet.
Pending Routes Number of routes still to be transmitted on this interface.
Related Command

show ipx eigrp neighbors

show ipx eigrp neighbors

To display the neighbors discovered by Enhanced IGRP, use the show ipx eigrp neighbors EXEC command.

show ipx eigrp neighbors [servers] [autonomous-system-number | interface]
Syntax Description
servers (Optional) Displays the server list advertised by each neighbor. This is displayed only if the ipx sap incremental command is enabled on the interface on which the neighbor resides.
autonomous-system-number (Optional) Autonomous system number. It can be a decimal integer from 1 to 65535.
interface (Optional) Interface type and number.
Command Mode

EXEC

Usage Guidelnes

This command first appeared in Cisco IOS Release 10.0.

Sample Display

The following is sample output from the show ipx eigrp neighbors command:

Router# show ipx eigrp neighbors
IPX EIGRP Neighbors for process 200
H  Address                 Interface     Hold   Uptime   Q    Seq    SRTT  RTO
                                         (secs) (h:m:s)  Cnt  Num    (ms)  (ms)
6  90.0000.0c02.096e       Tunnel44444   13     0:30:57  0    21     9     20
5  80.0000.0c02.34f2       Fddi0         12     0:31:17  0    62     14    28
4  83.5500.2000.a83c       TokenRing2    13     0:32:36  0    626    16    32
3  98.0000.3040.a6b0       TokenRing1    12     0:32:37  0    43     9     20
2  80.0000.0c08.cbf9       Fddi0         12     0:32:37  0    624    19    38
1  85.aa00.0400.153c       Ethernet2     12     0:32:37  0    627    15    30
0  82.0000.0c03.4d4b       Hssi0         12     0:32:38  0    629    12    24

Table 53 explains the fields in the display.


Table 53: Show IPX Enhanced IGRP Neighbors Field Descriptions
Field Description
process 200 Autonomous system number specified in the ipx router configuration command.
H Handle. An arbitrary and unique number inside this router that identifies the neighbor.
Address IPX address of the Enhanced IGRP peer.
Interface Interface on which the router is receiving hello packets from the peer.
Hold Length of time, in seconds, that the Cisco IOS software will wait to hear from the peer before declaring it down. If the peer is using the default hold time, this number will be less than 15. If the peer configures a nondefault hold time, it will be reflected here.
Uptime Elapsed time (in hours, minutes, and seconds) since the local router first heard from this neighbor.
Q Cnt Number of IPX Enhanced IGRP packets (Update, Query, and Reply) that the Cisco IOS software is waiting to send.
Seq Num Sequence number of the last Update, Query, or Reply packet that was received from this neighbor.
SRTT Smooth round-trip time. This is the number of milliseconds it takes for an IPX Enhanced IGRP packet to be sent to this neighbor and for the local router to receive an acknowledgment of that packet.
RTO Retransmission timeout, in milliseconds. This is the amount of time the Cisco IOS software waits before retransmitting a packet from the retransmission queue to a neighbor.

show ipx eigrp topology

To display the Enhanced IGRP topology table, use the show ipx eigrp topology EXEC command.

show ipx eigrp topology [network-number]
Syntax Description
network-number (Optional) IPX network number whose topology table entry to display.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Sample Display

The following is sample output from the show ipx eigrp topology command:

Router# show ipx eigrp topology 
IPX EIGRP Topology Table for process 109
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, 
r - Reply status
P 42, 1 successors, FD is 0
   via 160.0000.0c00.8ea9 (345088/319488), Ethernet0 
P 160, 1 successor via Connected, Ethernet 
   via 160.0000.0c00.8ea9 (307200/281600), Ethernet0 
P 165, 1 successors, FD is 307200
   via Redistributed (287744/0) 
   via 160.0000.0c00.8ea9 (313344/287744), Ethernet0 
P 164, 1 successors, flags: U, FD is 200
   via 160.0000.0c00.8ea9 (307200/281600), Ethernet1 
   via 160.0000.0c01.2b71 (332800/307200), Ethernet1 
P A112, 1 successors, FD is 0
   via Connected, Ethernet2 
   via 160.0000.0c00.8ea9 (332800/307200), Ethernet0 
P AAABBB, 1 successors, FD is 10003
   via Redistributed (287744/0), 
   via 160.0000.0c00.8ea9 (313344/287744), Ethernet0 
A A112, 0 successors, 1 replies, state: 0, FD is 0
   via 160.0000.0c01.2b71 (307200/281600), Ethernet1 
   via 160.0000.0c00.8ea9 (332800/307200), r, Ethernet1

Table 54 explains the fields in the output.


Table  54: Show IPX Enhanced IGRP Topology Field Descriptions
Field Description
Codes State of this topology table entry. Passive and Active refer to the Enhanced IGRP state with respect to this destination; Update, Query, and Reply refer to the type of packet that is being sent.
P - Passive No Enhanced IGRP computations are being performed for this destination.
A - Active Enhanced IGRP computations are being performed for this destination.
U - Update Indicates that an update packet was sent to this destination.
Q - Query Indicates that a query packet was sent to this destination.
R - Reply Indicates that a reply packet was sent to this destination.
r - Reply status Flag that is set after the Cisco IOS software has sent a query and is waiting for a reply.
42, 160, and so on Destination IPX network number.
successors Number of successors. This number corresponds to the number of next hops in the IPX routing table.
FD Feasible distance. This value is used in the feasibility condition check. If the neighbor's reported distance (the metric after the slash) is less than the feasible distance, the feasibility condition is met and that path is a feasible successor. Once the router determines it has a feasible successor, it does not have to send a query for that destination.
replies Number of replies that are still outstanding (have not been received) with respect to this destination. This information appears only when the destination is in Active state.
state Exact Enhanced IGRP state that this destination is in. It can be the number 0, 1, 2, or 3. This information appears only when the destination is Active.
via IPX address of the peer who told the Cisco IOS software about this destination. The first n of these entries, where n is the number of successors, are the current successors. The remaining entries on the list are feasible successors.
(345088/319488) The first number is the Enhanced IGRP metric that represents the cost to the destination. The second number is the Enhanced IGRP metric that this peer advertised.
Ethernet0 Interface from which this information was learned.

The following is sample output from the show ipx eigrp topology command when you specify an IPX network number:

Router# show ipx eigrp topology 160
IPX-EIGRP topology entry for 160 
State is Passive, Query origin flag is 1, 1 Successor(s) 
Routing Descriptor Blocks: 
 Next hop is Connected (Ethernet0), from 0.0000.0000.0000 
 Composite metric is (0/0), Send flag is 0x0, Route is Internal 
 Vector metric: 
  Minimum bandwidth is 10000 Kbit 
  Total delay is 1000000 nanoseconds 
  Reliability is 255/255 
  Load is 1/255 
  Minimum MTU is 1500 
  Hop count is 0 
Next hop is 164.0000.0c00.8ea9 (Ethernet1), from 164.0000.0c00.8ea9 
 Composite metric is (307200/281600), Send flag is 0x0, Route is External 
 This is an ignored route 
 Vector metric: 
  Minimum bandwidth is 10000 Kbit 
  Total delay is 2000000 nanoseconds 
  Reliability is 255/255 
  Load is 1/255 
  Minimum MTU is 1500 
  Hop count is 1 
 External data: 
  Originating router is 0000.0c00.8ea9 
  External protocol is RIP, metric is 1, delay 2 
  Administrator tag is 0 (0x00000000) 
  Flag is 0x00000000

Table 55 explains the fields in the output


Table 55: Show IPX Enhanced IGRP Topology Field Descriptions for a
Specific Network
Field Description
160 IPX network number of the destination.
State is ... State of this entry. It can be either Passive or Active. Passive means that no Enhanced IGRP computations are being performed for this destination, and Active means that they are being performed.
Query origin flag Exact Enhanced IGRP state that this destination is in. It can be the number 0, 1, 2, or 3. This information appears only when the destination is Active.
Successors Number of successors. This number corresponds to the number of next hops in the IPX routing table.
Next hop is ... Indicates how this destination was learned. It can be one of the following:

  • Connected--The destination is on a network directly connected to this router.

  • Redistributed--The destination was learned via RIP or another Enhanced IGRP process.

  • IPX host address--The destination was learned from that peer via this Enhanced IGRP process.

Ethernet0

Interface from which this information was learned.
from Peer from whom the information was learned. For connected and redistributed routers, this is 0.0000.0000.0000. For information learned via Enhanced IGRP, this is the peer's address. Currently, for information learned via Enhanced IGRP, the peer's IPX address always matches the address in the "Next hop is" field.
Composite metric is Enhanced IGRP composite metric. The first number is this device's metric to the destination, and the second is the peer's metric to the destination.
Send flag Numeric representation of the "flags" field described in Table 53. It is 0 when nothing is being sent, 1 when an Update is being sent, 3 when a Query is being sent, and 4 when a Reply is being sent. Currently, 2 is not used.
Route is ... Type of router. It can be either internal or external. Internal routes are those that originated in an Enhanced IGRP autonomous system, and external are routes that did not. Routes learned via RIP are always external.
This is an ignored route Indicates that this path is being ignored because of filtering.
Vector metric: This section describes the components of the Enhanced IGRP metric.
Minimum bandwidth Minimum bandwidth of the network used to reach the next hop.
Total delay Delay time to reach the next hop.
Reliability Reliability value used to reach the next hop.
Load Load value used to reach the next hop.
Minimum MTU Minimum MTU size of the network used to reach the next hop.
Hop count Number of hops to the next hop.
External data This section describes the original protocol from which this route was redistributed. It appears only for external routes.
Originating router Network address of the router that first distributed this route into Enhanced IGRP.
External protocol..metric..delay External protocol from which this route was learned. The metric will match the external hop count displayed by the show ipx route command for this destination. The delay is the external delay.
Administrator tag Not currently used.
Flag Not currently used.
Related Command

show ipx route

show ipx interface

To display the status of the IPX interfaces configured in the Cisco IOS software and the parameters configured on each interface, use the show ipx interface EXEC command.

show ipx interface [type number]
Syntax Description
type (Optional) Interface type. It can be one of the following types: asynchronous, dialer, Ethernet (IEEE 802.3), FDDI, loopback, null, serial, Token Ring, or tunnel.
number (Optional) Interface number.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Sample Display

The following is sample output from the show ipx interface command:

Router# show ipx interface ethernet 1
Ethernet1 is up, line protocol is up
  IPX address is C03.0000.0c05.6030, NOVELL-ETHER [up] line-up, RIPPQ: 0, SAPPQ : 0
  Delay of this Novell network, in ticks is 1
  IPXWAN processing not enabled on this interface.
  IPX SAP update interval is 1 minute(s)
  IPX type 20 propagation packet forwarding is disabled
  Outgoing access list is not set
  IPX Helper access list is not set
  SAP Input filter list is not set
  SAP Output filter list is not set
  SAP Router filter list is not set
  SAP GNS output filter list is not set
  Input filter list is not set
  Output filter list is not set
  Router filter list is not set
  Netbios Input host access list is not set
  Netbios Input bytes access list is not set
  Netbios Output host access list is not set
  Netbios Output bytes access list is not set
  Update time is 60 seconds
  IPX accounting is enabled
  IPX fast switching is configured (enabled)
  IPX SSE switching is disabled

The following is sample output from the show ipx interface command when NLSP is enabled:

Router# show ipx interface ethernet 1
Ethernet0 is up, line protocol is up
  IPX address is E001.0000.0c02.8cf9, SAP [up] line-up, RIPPQ: 0, SAPPQ : 0
  Delay of this IPX network, in ticks is 1 throughput 0 link delay 0
  IPXWAN processing not enabled on this interface.
  IPX SAP update interval is 1 minute(s)
  IPX type 20 propagation packet forwarding is disabled
  Outgoing access list is not set
  IPX Helper access list is not set
  SAP Input filter list is not set
  SAP Output filter list is not set
  SAP Router filter list is not set
  SAP GNS output filter list is not set
  Input filter list is not set
  Output filter list is not set
  Router filter list is not set
  Netbios Input host access list is not set
  Netbios Input bytes access list is not set
  Netbios Output host access list is not set
  Netbios Output bytes access list is not set
  Update time is 60 seconds
  IPX accounting is enabled
  IPX fast switching is configured (enabled)
  IPX SSE switching is disabled
  IPX NLSP is running on primary network E001
  RIP compatibility mode is AUTO (OFF)
  SAP compatibility mode is AUTO (OFF)
  Level 1 Hello interval 20 sec
  Level 1 Designated Router Hello interval 10 sec
  Level 1 CSNP interval 0 sec
  Level 1 LSP retransmit interval 5 sec, LSP (pacing) interval 1000 mSec
  Level 1 adjacency count is 1
  Level 1 circuit ID is 0000.0C02.8CF9.02

Table 56 describes the fields shown in the display.


Table 56: Show IPX Interface Field Descriptions
Field Description
Ethernet1 is ..., line protocol is ... Type of interface and whether it is currently active and inserted into the network (up) or inactive and not inserted (down).
IPX address is ... Network and node address of the local router interface, followed by the type of encapsulation configured on the interface and the interface's status. Refer to the ipx network command for a list of possible values.
NOVELL-ETHER Type of encapsulation being used on the interface, if any.
[up] line-up Indicates whether IPX routing is enabled or disabled on the interface. The "line-up" indicates that IPX routing has been enabled with the ipx routing command. The "line-down" indicates that it is not enabled. The word in square brackets provides more detail about the status of IPX routing when it is in the process of being enabled or disabled.
RIPPQ: Number of packets in the RIP queue.
SAPPQ: Number of packets in the SAP queue.
Secondary address is ... Address of a secondary network configured on this interface, if any, followed by the type of encapsulation configured on the interface and the interface's status. Refer to the ipx routing command for a list of possible values. This line is displayed only if you have configured a secondary address with the ipx routing command.
Delay of this IPX network, in ticks, ... Value of the ticks field (configured with the ipx delay command).
throughput Throughput of the interface (configured with the ipx spx-idle-time interface configuration command).
link delay Link delay of the interface (configured with the ipx link-delay interface configuration command).
IPXWAN processing... Indicates whether IPXWAN processing has been enabled on this interface with the ipx ipxwan command.
IPX SAP update interval Indicates the frequency of outgoing SAP updates (configured with the ipx sap-interval command).
IPX type 20 propagation packet forwarding... Indicates whether forwarding of IPX type 20 propagation packets (used by NetBIOS) is enabled or disabled on this interface, as configured with the ipx type-20-propagation command.
Outgoing access list Indicates whether an access list has been enabled with the
ipx access-group command.
IPX Helper access list Number of the broadcast helper list applied to the interface with the ipx helper-list command.
SAP Input filter list Number of the input SAP filter applied to the interface with the
ipx input-sap-filter command.
SAP Output filter list Number of the output SAP filter applied to the interface with the
ipx output-sap-filter command.
SAP Router filter list Number of the router SAP filter applied to the interface with the
ipx router-sap-filter command.
SAP GNS output filter Number of the Get Nearest Server (GNS) response filter applied to the interface with the ipx output-gns-filter command.
Input filter Number of the input filter applied to the interface with the
ipx input-network-filter command.
Output filter Number of the output filter applied to the interface with the
ipx output-network-filter command.
Router filter Number of the router entry filter applied to the interface with the
ipx router-filter command.
Netbios Input host access list Name of the IPX NetBIOS input host filter applied to the interface with the ipx netbios input-access-filter host command.
Netbios Input bytes access list Name of the IPX NetBIOS input bytes filter applied to the interface with the ipx netbios input-access-filter bytes command.
Netbios Output host access list Name of the IPX NetBIOS output host filter applied to the interface with the ipx netbios input-access-filter host command.
Netbios Output bytes access list Name of the IPX NetBIOS output bytes filter applied to the interface with the ipx netbios input-access-filter bytes command.
Update time How often the Cisco IOS software sends RIP updates, as configured with the ipx update-time command.
Watchdog spoofing ... Indicates whether watchdog spoofing is enabled of disabled for this interface, as configured with the ipx watchdog-spoof command. This information is displayed only on serial interfaces.
IPX accounting Indicates whether IPX accounting has been enabled with the ipx accounting command.
IPX Fast switching
IPX Autonomous switching
Indicates whether IPX fast switching is enabled (default) or disabled for this interface, as configured with ipx route-cache command. (If IPX autonomous switching is enabled, it is configured with the ipx route-cache cbus command.)
IPX SSE switching Indicates whether IPX SSE switching is enabled for this interface, as configured with the ipx route-cache sse command.
IPX NLSP is running on primary network E001 Indicates that NLSP is running and the number of the primary IPX network on which it is running.
RIP compatibility mode State of RIP compatibility (configured by the ipx nlsp rip interface configuration command).
SAP compatibility mode State of SAP compatibility (configured by the ipx nlsp sap interface configuration command).
Level 1 Hello interval Interval between transmission of hello packets for nondesignated routers (configured by the ipx nlsp hello-interval interface configuration command).
Level 1 Designated Router Hello interval Interval between transmission of hello packets for designated routers (configured by the ipx nlsp hello-interval interface configuration command).
Level 1 CSNP interval CSNP interval (as configured by the ipx nlsp csnp-interval interface configuration command).
Level 1 LSP retransmit interval LSP retransmission interval (as configured by the
ipx nlsp retransmit-interval interface configuration command).
LSP (pacing) interval LSP transmission interval (as configured by the ipx nlsp lsp-interval interface configuration command).
Level 1 adjacency count Number of Level 1 adjacencies in the adjacency database.
Level 1 circuit ID System ID and pseudonode number of the designated router. In this example, 0000.0C02.8CF9 is the system ID, and 02 is the pseudonode number.
Related Commands

access-list (SAP filtering)
access-list (standard)
ipx accounting
ipx delay
ipx helper-list
ipx input-network-filter
ipx input-sap-filter
ipx ipxwan
ipx netbios input-access-filter
ipx netbios output-access-filter
ipx network
ipx output-gns-filter
ipx output-network-filter
ipx output-rip-delay
ipx output-sap-filter
ipx route-cache
ipx router-filter
ipx router-sap-filter
ipx routing
ipx sap-interval
ipx update-time
ipx watchdog-spoof
netbios access-list

show ipx nhrp

To display the Next Hop Resolution Protocol (NHRP) cache, use the show ipx nhrp EXEC command.

show ipx nhrp [dynamic | static] [type number]
Syntax Description
dynamic (Optional) Displays only the dynamic (learned) IPX-to-NBMA address cache entries.
static (Optional) Displays only the static IPX-to-NBMA address entries in the cache (configured through the ipx nhrp map command).
type (Optional) Interface type about which to display the NHRP cache. Valid options are atm, serial, and tunnel).
number (Optional) Interface number about which to display the NHRP cache.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Sample Display

The following is sample output from the show ipx nhrp command:

Router# show ipx nhrp 
1.0000.0c35.de01, Serial1 created 0:00:43 expire 1:59:16
  Type: dynamic Flags: authoritative 
  NBMA address: c141.0001.0001
1.0000.0c35.e605, Serial1 created 0:10:03 expire 1:49:56
  Type: static Flags: authoritative 
  NBMA address: c141.0001.0002
Router#

Table 57 describes the fields in the display.


Table 57: Show IP NHRP Field Descriptions
Field Description
1.0000.0c35.de01 IPX address in the IPX-to-NBMA address cache.
Serial1 created 0:00:43 Interface type and number and how long ago it was created (hours:minutes:seconds).
expire 1:59:16 Time in which the positive and negative authoritative NBMA address will expire (hours:minutes:seconds). This value is based on the
ipx nhrp holdtime command.
Type Value can be one of the following:

  • dynamic--NBMA address was obtained from NHRP Request packet.

  • static--NBMA address was statically configured.

Flags

Value can be one of the following:

  • authoritative--Indicates that the NHRP information was obtained from the Next Hop Server or router that maintains the NBMA-to-IPX address mapping for a particular destination.

  • implicit--Indicates that the information was learned not from an NHRP request generated from the local router, but from an NHRP packet being forwarded or from an NHRP request being received by the local router.

  • negative--For negative caching; indicates that the requested NBMA mapping could not be obtained.

NBMA address

Nonbroadcast, multiaccess address. The address format is appropriate for the type of network being used (for example, ATM, Ethernet, SMDS, multipoint tunnel).
Related Command

ipx nhrp map

show ipx nhrp traffic

To display Next Hop Resolution Protocol (NHRP) traffic statistics, use the show ipx nhrp traffic EXEC command.

show ipx nhrp traffic
Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Sample Display

The following is sample output from the show ipx nhrp traffic command:

Router# show ipx nhrp traffic
Tunnel0
  request packets sent: 2
  request packets received: 4
  reply packets sent: 4
  reply packets received: 2
  register packets sent: 0
  register packets received: 0
  error packets sent: 0
  error packets received: 0
Router#

Table 58 describes the fields in the display.


Table  58: Show IP NHRP Traffic Field Descriptions
Field Description
Tunnel 0 Interface type and number.
request packets sent Number of NHRP Request packets originated from this station.
request packets received Number of NHRP Request packets received by this station.
reply packets sent Number of NHRP Reply packets originated from this station.
reply packets received Number of NHRP Reply packets received by this station.
register packets sent Number of NHRP Register packets originated from this station. Currently, our routers do not send Register packets, so this value is 0.
register packets received Number of NHRP Register packets received by this station. Currently, our routers do not send Register packets, so this value is 0.
error packets sent Number of NHRP Error packets originated by this station.
error packets received Number of NHRP Error packets received by this station.

show ipx nlsp database

To display the entries in the link-state packet (LSP) database, use the show ipx nlsp database EXEC command.

show ipx nlsp [tag] database [lspid] [detail]
Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
lspid (Optional) Link-state protocol ID (LSPID). You must specify this in the format xxxx.xxxx.xxxx.yy-zz. The components of this argument have the following meaning:

· xxxx.xxxx.xxxx is the system identifier.

· yy is the pseudo identifier.

· zz is the LSP number.

detail (Optional) Displays the contents of the LSP database entries. If you omit this keyword, only a summary display is shown.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

When you specify an NLSP tag, the router displays the link-state packet database entries for that NLSP process. An NLSP process is a router's databases working together to manage route information about an area. NLSP version 1.0 routers are always in the same area. Each router has its own adjacencies, link-state, and forwarding databases. These databases operate collectively as a single process to discover, select, and maintain route information about the area. NLSP version 1.1 routers that exist within a single area also use a single process.

NLSP version 1.1 routers that interconnect multiple areas use multiple processes to discover, select, and maintain route information about the areas they interconnect. These routers manage an adjacencies, link-state, and area address database for each area to which they attach. Collectively, these databases are still referred to as a process. The forwarding database is shared among processes within a router. The sharing of entries in the forwarding database is automatic when all processes interconnect NLSP version 1.1 areas.

Configure multiple NLSP processes when a router interconnects multiple NLSP areas.


Note NLSP version 1.1 routers refer to routers that support the route aggregation feature, while NLSP version 1.0 routers refer to routers that do not.

If you omit all options, a summary display is shown.

Sample Displays

The following is sample output from the show ipx nlsp database command:

Router# show ipx nlsp database detail
LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT/P/OL
0000.0C00.3097.00-00* 0x00000042   0xC512        699           0/0/0
0000.0C00.3097.06-00* 0x00000027   0x0C27        698           0/0/0
0000.0C02.7471.00-00  0x0000003A   0x4A0F        702           0/0/0
0000.0C02.7471.08-00  0x00000027   0x0AF0        702           0/0/0
0000.0C02.7471.0A-00  0x00000027   0xC589        702           0/0/0
0000.0C02.747D.00-00  0x0000002E   0xC489        715           0/0/0
0000.0C02.747D.06-00  0x00000027   0xEEFE        716           0/0/0
0000.0C02.747D.0A-00  0x00000027   0xFE38        716           0/0/0
0000.0C02.74AB.00-00  0x00000035   0xE4AF        1059          0/0/0
0000.0C02.74AB.0A-00  0x00000027   0x34A4        705           0/0/0
0000.0C06.FBEE.00-00  0x00000038   0x3838        1056          0/0/0
0000.0C06.FBEE.0D-00  0x0000002C   0xD248        1056          0/0/0
0000.0C06.FBEE.0E-00  0x0000002D   0x7DD2        1056          0/0/0
0000.0C06.FBEE.17-00  0x00000029   0x32FB        1056          0/0/0
0000.0C00.AECC.00-00* 0x000000B6   0x62A8        7497          0/0/0
  IPX Area Address: 00000000 00000000
  IPX Mgmt Info 87.0000.0000.0001  Ver 1  Name oscar
  Metric: 45 Lnk 0000.0C00.AECC.06  MTU 1500  Dly 8000  Thru 64K  PPP
  Metric: 20 Lnk 0000.0C00.AECC.02  MTU 1500  Dly 1000  Thru 10000K  802.3 Raw
  Metric: 20 Lnk 0000.0C01.EF90.0C  MTU 1500  Dly 1000  Thru 10000K  802.3 Raw
0000.0C00.AECC.02-00* 0x00000002   0xDA74        3118          0/0/0
  IPX Mgmt Info E0.0000.0c00.aecc  Ver 1  Name Ethernet0
  Metric: 0  Lnk 0000.0C00.AECC.00  MTU 0  Dly 0  Thru 0K  802.3 Raw
0000.0C00.AECC.06-00* 0x00000002   0x5DB9        7494          0/0/0
  IPX Mgmt Info 0.0000.0000.0000  Ver 1  Name Serial0
  Metric: 0  Lnk 0000.0C00.AECC.00  MTU 0  Dly 0  Thru 0K  PPP
  Metric: 1  IPX Ext D001  Ticks 0
  Metric: 1  IPX SVC Second-floor-printer  D001.0000.0000.0001  Sock 1  Type 4

Table 59 explains the fields in the display.


Table 59: Show IPX NLSP Database Field Descriptions
Field Description
LSPID System ID (network number), pseudonode circuit identifier, and fragment number.
LSP Seq Num Sequence number of this LSP.
LSP Checksum Checksum of this LSP.
LSP Holdtime Time until this LSP expires, in seconds.
ATT/P/OL Indicates which of three bits are set. A "1" means the bit is set, and a "0" means it is not set.

ATT is the L2-attached bit.

OL is the overload bit.

P is the partition repair bit. This bit is not used in NLSP.

IPX Area Address: Area address of the router advertising the LSP.
IPX Mgmt Info Management information. For nonpseudonode LSPs, the internal network number is advertised in this field. For pseudonode LSPs, the network number of the associated interface is advertised.
Ver NLSP version running on the advertising router.
Name For nonpseudonode LSPs, the name of the router. For pseudonode LSPs, the name (or description, if configured) of the associated interface.
Link Information Information about the link.
Metric: NLSP metric (cost) for the link. Links from a pseudonode to real nodes have a cost of 0 so that this link cost is not counted twice.
Lnk System ID of the adjacent node.
MTU MTU of the link in bytes. For pseudonode LSPs, the value in this field is always 0.
Dly Delay of the link in microseconds. For pseudonode LSPs, the value in this field is always 0.
Thru Throughput of the link in bits per second. For pseudonode LSPs, the value in this field is always 0.
802.3 Raw, Generic LAN Link media type.
External (RIP) Networks Information about an external (RIP) network.
Metric: Received RIP hop count.
IPX Ext IPX network number.
Ticks Received RIP tick count.
SAP Services Information about SAP services.
Metric: Received SAP hop count.
IPX SVC Name of the IPX service.
D001.000.0000.0001 IPX address of the server advertising this service.
Sock Socket number of the service.
Type Type of service.

The following example shows how to use the show ipx nlsp database detail command with NLSP enabled.

Router#show ipx nlsp database detail
NLSP Level-1 Link State Database
LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT/P/OL
dtp-8-BOS.00-00       0x00000012   0x8819        7435          0/0/0
IPX Area Address: 00000000 00000000
IPX Mgmt Info 2008.0000.0000.0001  Ver 1  Name dtp-8-BOS
Metric: 20 Lnk dtp-8-BOS.04       MTU 1500  Dly 1000  Thru 10000K  802.3 Raw
Metric: 20 Lnk dtp-8-BOS.06       MTU 1500  Dly 1000  Thru 10000K  802.3 Raw
Metric: 19 Lnk dtp-8-BOS.02       MTU 8141  Dly 630  Thru 16000K  802.5/LLC
Metric: 19 Lnk dtp-8-BOS.03       MTU 8141  Dly 630  Thru 16000K  802.5/LLC
Area Count: 6  IPX Sum 1000 FFFFF000  Ticks 1
******** aggregate entry in the LSP ****************
dtp-8-BOS.02-00       0x00000005   0x0F36        7434          0/0/0
IPX Mgmt Info 89.0000.3020.cc5b  Ver 1  Name TokenRing0
Metric: 0  Lnk dtp-8-BOS.00       MTU 0  Dly 0  Thru 0K  802.5/LLC
dtp-8-BOS.03-00       0x00000008   0x96EE        7430          0/0/0
IPX Mgmt Info 91.0000.3020.ccdb  Ver 1  Name TokenRing1
Metric: 0  Lnk dtp-8-BOS.00       MTU 0  Dly 0  Thru 0K  802.5/LLC
Metric: 0  Lnk dtp-11.00          MTU 0  Dly 0  Thru 0K  802.5/LLC
dtp-8-BOS.04-00       0x00000006   0x8C4D        7427          0/0/0
IPX Mgmt Info 1.0000.0c05.6023  Ver 1  Name Ethernet0
Metric: 0  Lnk dtp-8-BOS.00       MTU 0  Dly 0  Thru 0K  802.3 Raw
Metric: 1  IPX Ext 2010  Ticks 2
Metric: 1  IPX Ext 20  Ticks 1
dtp-8-BOS.06-00       0x00000005   0x946B        7426          0/0/0
IPX Mgmt Info 100.0000.0c05.6023  Ver 1  Name Ethernet1
Metric: 0  Lnk dtp-8-BOS.00       MTU 0  Dly 0  Thru 0K  802.3 Raw
dtp-11.00-00        * 0x00000007   0x7777        7271          0/0/0
IPX Area Address: 00000000 00000000
IPX Mgmt Info 2011.0000.0000.0001  Ver 1  Name dtp-11
Metric: 20 Lnk dtp-11.06          MTU 1500  Dly 1000  Thru 10000K  802.3 Raw
Metric: 20 Lnk dtp-11.08          MTU 1500  Dly 1000  Thru 10000K  802.3 Raw
Metric: 20 Lnk dtp-11.09          MTU 1500  Dly 1000  Thru 10000K  802.3 Raw

show ipx nlsp neighbors

To display NLSP neighbors and their states, use the show ipx nlsp neighbors EXEC command.

show ipx nlsp [tag] neighbors [interface] [detail]
Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
interface (Optional) Interface type and number.
detail (Optional) Displays detailed information about the neighbor. If you omit this keyword, only a summary display is shown.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

When you specify an NLSP tag, the router displays the NLSP neighbors for that NLSP process. An NLSP process is a router's databases working together to manage route information about an area. NLSP version 1.0 routers are always in the same area. Each router has its own adjacencies, link-state, and forwarding databases. These databases operate collectively as a single process to discover, select, and maintain route information about the area. NLSP version 1.1 routers that exist within a single area also use a single process.

NLSP version 1.1 routers that interconnect multiple areas use multiple processes to discover, select, and maintain route information about the areas they interconnect. These routers manage an adjacencies, link-state, and area address database for each area to which they attach. Collectively, these databases are still referred to as a process. The forwarding database is shared among processes within a router. The sharing of entries in the forwarding database is automatic when all processes interconnect NLSP version 1.1 areas.

Configure multiple NLSP processes when a router interconnects multiple NLSP areas.


Note NLSP version 1.1 routers refer to routers that support the route aggregation feature, while NLSP version 1.0 routers refer to routers that do not.

If you omit the keyword detail, a summary display is shown.

Sample Display

The following is sample output from the show ipx nlsp neighbors command:

Router# show ipx nlsp neighbors detail
System Id       Interface   State  Holdtime  Priority  Circuit Id
0000.0C01.EF90  Ethernet1   Up     25        64        0000.0C01.EF90.0C
  IPX Address: E1.0000.0c01.ef91
  IPX Areas:  00000000/00000000
  Uptime: 2:59:11

Table 60 explains the fields in the display.


Table  60: Show IPX NLSP Neighbors Field Descriptions
Field Description
System Id System ID of the neighbor.
Interface Interface on which the neighbor was discovered.
State State of the neighbor adjacency.
Holdtime Remaining time before the neighbor is assumed to have failed.
Priority Designated router election priority.
Circuit Id Neighbor's view of the identity of the designated router.
IPX Address: IPX address on this network of the neighbor.
IPX Areas: IPX area addresses configured on the neighbor.
Uptime: Time since the neighbor was discovered.

show ipx nlsp spf-log

To display a history of the shortest path first (SPF) calculations for NLSP, use the show ipx nlsp spf-log EXEC command.

show ipx nlsp [tag] spf-log
Syntax Description
tag (Optional) Names the NLSP process. The tag can be any combination of printable characters.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.1.

Sample Display

The following is sample output from the show ipx nlsp spf-log command:

Router> show ipx nlsp spf-log
    Level 1 SPF log
  When   Duration  Nodes  Count  Triggers
0:30:59     1028     84      1  TLVCONTENT
0:27:09     1016     84      1  TLVCONTENT
0:26:30     1136     84      1  TLVCONTENT
0:23:11     1244     84      1  TLVCONTENT
0:22:39      924     84      2  TLVCONTENT
0:22:08     1036     84      1  TLVCONTENT
0:20:02     1096     84      1  TLVCONTENT
0:19:31     1140     84      1  TLVCONTENT
0:17:25      964     84      2  PERIODIC TLVCONTENT
0:16:54      996     84      1  TLVCONTENT
0:16:23      984     84      1  TLVCONTENT
0:15:52     1052     84      1  TLVCONTENT
0:14:34     1112     84      1  TLVCONTENT
0:13:37      992     84      1  TLVCONTENT
0:13:06     1036     84      1  TLVCONTENT
0:12:35     1008     84      1  TLVCONTENT
0:02:52     1032     84      1  TLVCONTENT
0:02:16     1032     84      1  PERIODIC
0:01:44     1000     84      3  TLVCONTENT
           

Table 61 describes the fields shown in the display.


Table 61: Show IPX NLSP SPF Log Field Descriptions
Field Descriptions
When Amount of time since the SPF calculation took place.
Duration Amount of time (in milliseconds) that the calculation required.
Nodes Number of link state packets (LSPs) encountered during the calculation.
Count Number of times that the SPF calculation was triggered before it actually took place. An SPF calculation is normally delayed for a short time after the event that triggers it.
Triggers List of the types of triggers that were recorded before the SPF calculation occurred (more than one type may be displayed):

PERIODIC--Periodic SPF calculation (every 15 minutes).

NEWSYSID--New system ID was assigned.

NEWAREA--New area address was configured.

RTCLEARED--IPX routing table was manually cleared.

NEWMETRIC--Link metric of an interface was reconfigured.

ATTACHFLAG--Level 2 router has become attached or unattached from the rest of the level 2 topology.

LSPEXPIRED--LSP has expired.

NEWLSP--New LSP has been received.

LSPHEADER--LSP with changed header fields was received.

TLVCODE--LSP with a changed (Type-Length-Value) TLV code field was received.

TLVCONTENT--LSP with changed TLV contents was received.

AREASET--Calculated area address set has changed.

NEWADJ--New neighbor adjacency came up.

DBCHANGED--NLSP link state database was manually cleared.

show ipx route

To display the contents of the IPX routing table, use the show ipx route user EXEC command.

show ipx route [network] [default] [detailed]
Syntax Description
network (Optional) Number of the network whose routing table entry you want to display. This is an eight-digit hexadecimal number that uniquely identifies a network cable segment. It can be a number in the range 1 to FFFFFFFD. You do not need to specify leading zeros in the network number. For example, for the network number 000000AA, you can enter AA.
default (Optional) Displays the default route. This is equivalent to specifying a value of FFFFFFFE for the argument network.
detailed (Optional) Displays detailed route information.
Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0. The default and detailed keywords first appeared in Cisco IOS Relesae 10.0.

Sample Displays

The following is sample output from the show ipx route command:

Router# show ipx route
Codes: C - Connected primary network,    c - Connected secondary network
       S - Static, F - Floating static, L - Local (internal), W - IPXWAN
       R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
       s - seconds, u - uses
8 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.
No default route known.
L        D40 is the internal network
C        100 (NOVELL-ETHER), Et1
C       7000 (TUNNEL),        Tu1
S        200 via     7000.0000.0c05.6023,        Tu1
R        300 [02/01] via      100.0260.8c8d.e748,   19s, Et1
S       2008 via     7000.0000.0c05.6023,        Tu1
R     CC0001 [02/01] via      100.0260.8c8d.e748,   19s, Et1

Table 62 describes the fields shown in the display.


Table 62: Show IPX Route Field Descriptions
Field Description
Codes Codes defining how the route was learned.
L Internal network number.
C Directly connected primary network
c Directly connected secondary network
S Statically defined route via the ipx route command.
R Route learned from a RIP update.
E Route learned from an Enhanced IGRP (EIGRP) update.
W Directly connected route determined via IPXWAN.
8 Total IPX routes Number of routes in the IPX routing table.
No parallel paths allowed Maximum number of parallel paths for which the Cisco IOS software has been configured with the ipx maximum-paths command.
Novell routing algorithm variant in use Indicates whether the Cisco IOS software is using the IPX-compliant routing algorithms (default).
Net 1 Network to which the route goes.
[3/2] Delay/Metric. Delay is the number of IBM clock ticks (each tick is 1/18 seconds) reported to the destination network. Metric is the number of hops reported to the same network. Delay is used as the primary routing metric, and the metric (hop count) is used as a tie breaker.
via network.node Address of a router that is the next hop to the remote network.
age Amount of time (in hours, minutes, and seconds) that has elapsed since information about this network was last received.
uses Number of times this network has been looked up in the route table. This field is incremented when a packet is process-switched, even if the packet is eventually filtered and not sent. As such, this field represents a fair estimate of the number of times a route gets used.
Ethernet0 Interface through which packets to the remote network will be sent.
(NOVELL-ETHER)
(HDLC) (SAP) (SNAP)
Encapsulation (frame) type. This is shown only for directly connected networks.
is directly connected Indicates that the network is directly connected to the router.

When the Cisco IOS software generates an aggregated route, the show ipx route command displays a line item similar to the following:

NA      1000 FFFFF000 [**][**/06] via        0.0000.0000.0000,  163s, Nu0

In the following example, the router that sends the aggregated route also generates the aggregated route line item in its table. But the entry in the table points to the null interface (Nu0), indicating that if this aggregated route is the most-specific route when a packet is being forwarded, the router drops the packet instead.

Router# show ipx route
Codes: C - Connected primary network,    c - Connected secondary network
       S - Static, F - Floating static, L - Local (internal), W - IPXWAN
       R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
       s - seconds, u - uses
13 Total IPX routes. Up to 4 parallel paths and 16 hops allowed.
No default route known.
NA      1000 FFFFF000 [**][**/06] via        0.0000.0000.0000,  163s, Nu0
L       2008 is the internal network
C          1 (NOVELL-ETHER),  Et0
C         89 (SAP),           To0
C         91 (SAP),           To1
C        100 (NOVELL-ETHER),  Et1
N          2 [19][01/01]          via       91.0000.30a0.51cd,  317s, To1
N          3 [19][01/01]          via       91.0000.30a0.51cd,  327s, To1
N         20 [20][01/01]          via        1.0000.0c05.8b24, 2024s, Et0
N        101 [19][01/01]          via       91.0000.30a0.51cd,  327s, To1
NX      1000 [20][02/02][01/01]   via        1.0000.0c05.8b24, 2024s, Et0
N       2010 [20][02/01]          via        1.0000.0c05.8b24, 2025s, Et0
N       2011 [19][02/01]          via       91.0000.30a0.51cd,  328s, To1

The following is sample output from the show ipx route detailed command:

Router# show ipx route detailed
Codes: C - Connected primary network,    c - Connected secondary network
       S - Static, F - Floating static, L - Local (internal), W - IPXWAN
       R - RIP, E - EIGRP, N - NLSP, X - External, s - seconds, u - uses
9 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.
No default route known.
L        D35 is the internal network
C       E001 (SAP),           Et0
C      D35E2 (NOVELL-ETHER),  Et2
R        D34 [02/01]
          -- via     E001.0000.0c02.8cf9,  43s,     1u, Et0
N        D36 [20][02/01]
          -- via    D35E2.0000.0c02.8cfc, 704s,     1u, Et2
                  10000000:1000:1500:0000.0c02.8cfb:6:0000.0c02.8cfc
NX       D40 [20][03/02][02/01]
          -- via    D35E2.0000.0c02.8cfc, 704s,     1u, Et2
                  10000000:2000:1500:0000.0c02.8cfb:6:0000.0c02.8cfc
R      D34E1 [01/01]
          -- via     E001.0000.0c02.8cf9,  43s,     1u, Et0
NX     D40E1 [20][02/02][01/01]
          -- via    D35E2.0000.0c02.8cfc, 704s,     3u, Et2
                  10000000:2000:1500:0000.0c02.8cfb:6:0000.0c02.8cfc
N     D36E02 [20][01/01]
          -- via    D35E2.0000.0c02.8cfc, 705s,     2u, Et2
                  10000000:2000:1500:0000.0c02.8cfb:6:0000.0c02.8cfc

Table 63 explains the additional fields shown in the display.


Table 63: Show IPX Route Detailed Field Descriptions
Field Description
1u Number of times this network has been looked up in the route table. This field is incremented when a packet is process-switched, even if the packet is eventually filtered and not sent. As such, this field represents a fair estimate of the number of times a route gets used.
10000000 (NLSP only) Throughput (end to end).
3000 (NLSP only) Link delay (end to end).
1500 (NLSP only) MTU (end to end).
0000.0c02.8cfb (NLSP only) System ID of the next-hop router.
0000.0c02.8cfc (NLSP only) MAC address of the next-hop router.
6 (NLSP only) Local circuit ID.
Related Commands

clear ipx route
ipx maximum-paths
ipx nlsp metric
ipx route

show ipx servers

To list the IPX servers discovered through Service Advertising Protocol (SAP) advertisements, use the show ipx servers EXEC command.

show ipx servers [unsorted | [sorted [name | net | type]] [regexp name]
Syntax Description
unsorted (Optional) Does not sort entries when displaying IPX servers.
sorted (Optional) Sorts the display of IPX servers according to the keyword that follows.
name (Optional) Displays the IPX servers alphabetically by server name.
net (Optional) Displays the IPX servers numerically by network number.
type (Optional) Displays the IPX servers numerically by SAP service type. This is the default.
regexp name (Optional) Displays the IPX servers whose names match the regular expression.
Default

IPX servers are displayed numerically by SAP service type.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0. The unsorted keyword first appeared in Cisco IOS Release 11.0

Sample Display

The following is sample output from the show ipx servers command when NLSP is enabled:

Router# show ipx servers 
Codes: S - Static, P - Periodic, E - EIGRP, N - NLSP, H - Holddown, + = detail
9 Total IPX Servers
Table ordering is based on routing and server info
Type Name                      Net  Address          Port Route Hops Itf
N+   4 MERLIN1-VIA-E03         E03E03.0002.0004.0006:0451 4/03  4    Et0
N+   4 merlin                  E03E03.0002.0004.0006:0451 4/03  3    Et0
N+   4 merlin 123456789012345  E03E03.0002.0004.0006:0451 4/03  3    Et0
S    4 WIZARD1--VIA-E0         E0.0002.0004.0006:0451     none  2
N+   4 dtp-15-AB               E002.0002.0004.0006:0451   none  4    Et0
N+   4 dtp-15-ABC              E002.0002.0004.0006:0451   none  4    Et0
N+   4 dtp-15-ABCD             E002.0002.0004.0006:0451   none  4    Et0
N+   4 merlin                  E03E03.0002.0004.0006:0451 4/03  3    Et0
N+   4 dtp-15-ABC              E002.0002.0004.0006:0451   none  4    Et0

Table 64 describes the fields shown in the display.


Table  64: Show IPX Servers Field Descriptions
Field Description
Codes Codes defining how the service was learned.
S Statically defined service via the ipx sap command.
P Service learned via a SAP update.
E Service learned via Enhanced IGRP.
N Service learned via NLSP.
H Indicates that the entry is in holddown mode and is not reachable.
+ Indicates that multiple paths to the server exist. Use the show ipx servers detailed EXEC command to display more detailed information about the paths.
Type Contains codes from Codes field to indicates how service was learned.
Name Name of server.
Net Network on which server is located.
Address Network address of server.
Port Source socket number.
Route Ticks/hops (from the routing table).
Hops Hops (from the SAP protocol).
Itf Interface through which to reach server.

The following example uses a regular expression to display SAP table entries corresponding to a particular group of servers in the accounting department of a company:

Router# show ipx servers regexp ACCT\_SERV.+
Codes: S - Static, P - Periodic, E - EIGRP, N - NLSP, H - Holddown, + = detail
9 Total IPX Servers
Table ordering is based on routing and server info
 Type  Name            Net  Address        Port  Route  Hops Itf
S 108  ACCT_SERV_1     7001.0000.0000.0001:0001   1/01   2   Et0
S 108  ACCT_SERV_2     7001.0000.0000.0001:0001   1/01   2   Et0
S 108  ACCT_SERV_3     7001.0000.0000.0001:0001   1/01   2   Et0

See Table 64 for show IPX servers field descriptions.


Note For more information on regular expressions, see the "Regular Expressions" appendix in the Access Services Command Reference.
Related Command

ipx sap

show ipx spx-spoof

To display the table of SPX connections through interfaces for which SPX spoofing is enabled, use the show ipx spx-spoof EXEC command.

show ipx spx-spoof
Syntax Description

This command has no arguments or keywords.

Default

Disabled

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.0.

Sample Display

The following is sample output from the show ipx spx-spoof command:

Router> show ipx spx-spoof

Local SPX Network.Host:sock Cid  Remote SPX Network.Host:sock Cid   Seq  Ack  Idle CC0001.0000.0000.0001:8104  0D08 200.0260.8c8d.e7c6:4017      7204  09   0021 120 CC0001.0000.0000.0001:8104  0C08 200.0260.8c8d.c558:4016      7304  07   0025 120

Table 65 describes the fields shown in the display.


Table  65: Show SPX Spoofing Field Descriptions
Field Description
Local SPX Network.Host:sock Address of the local end of the SPX connection. The address is composed of the SPX network number, host, and socket.
Cid Connection identification of the local end of the SPX connection.
Remote SPX Network.Host:sock Address of the remote end of the SPX connection. The address is composed of the SPX network number, host, and socket.
Cid Connection identification of the remote end of the SPX connection.
Seq Sequence number of the last data packet transferred.
Ack Number of the last solicited acknowledge received.
Idle Amount of time elapsed since the last data packet was transferred.
Related Commands

ipx spx-idle-time
ipx spx-spoof

show ipx traffic

To display information about the number and type of IPX packets transmitted and received, use the show ipx traffic user EXEC command.

show ipx traffic
Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 10.0.

Sample Display

The following is sample output from the show ipx traffic command:

Router> show ipx traffic
Rcvd:   644 total, 1705 format errors, 0 checksum errors, 0 bad hop count,
        0 packets pitched, 644 local destination, 0 multicast
Bcast:  589 received, 324 sent
Sent:   380 generated, 0 forwarded
        0 encapsulation failed, 4 no route
SAP:    1 SAP requests, 1 SAP replies, 20servers
        10 SAP Nearest Name requests, 10 replies
        15 SAP General Name requests, 15 replies
        61 SAP advertisements received, 120 sent
        0 SAP flash updates sent, 0 SAP format errors
RIP:    0 RIP format errors
Echo:   Rcvd 55 requests, 0 replies
        Sent 0 requests, 55 replies
        0 unknown, 0 SAPs throttled, freed NDB len 0
Watchdog:
        0 packets received, 0 replies spoofed
Queue lengths: IPX input: 0, SAP 0, RIP 0, GNS 0
               Total length for SAP throttling purposes: 0/(no preset limit)
EIGRP:  Total received 0, sent 0
        Updates received 0, sent 0
        Queries received 0, sent 0
        Replies received 0, sent 0
        SAPs received 0, sent 0

The following is sample output from the show ipx traffic command when NLSP is enabled:

Router> show ipx traffic
Rcvd:   593135 total, 38792 format errors, 0 checksum errors, 0 bad hop count, 
        21542 packets pitched, 295493 local destination, 0 multicast
Bcast:  295465 received, 346725 sent
Sent:   429393 generated, 276100 forwarded
        0 encapsulation failed, 0 no route
SAP:    4259 SAP requests, 0 SAP replies, 35 servers
        0 SAP Nearest Name requests, 0 replies
        0 SAP General Name requests, 0 replies
        191636 SAP advertisements received, 277136 sent
        115 SAP flash updates sent, 0 SAP format errors
RIP:    4676 RIP requests, 336 RIP replies, 18 routes
        87274 RIP advertisements received, 69438 sent
        74 RIP flash updates sent, 0 RIP format errors
Echo:   Rcvd 0 requests, 0 replies
        Sent 0 requests, 0 replies
        7648 unknown: 0 no socket, 0 filtered, 7648 no helper
        0 SAPs throttled, freed NDB len 0
Watchdog:
        0 packets received, 0 replies spoofed
Queue lengths:
        IPX input: 0, SAP 0, RIP 0, GNS 0
        SAP throttling length: 0/(no limit), 0 nets pending lost route reply
        Delayed process creation: 0
EIGRP:  Total received 0, sent 0
        Updates received 0, sent 0
        Queries received 0, sent 0
        Replies received 0, sent 0
        SAPs received 0, sent 0
NLSP:   Level-1 Hellos received 0, sent 0
        PTP Hello received 0, sent 0
        Level-1 LSPs received 0, sent 0
        LSP checksum errors received: 0
        LSP HT=0 checksum errors received: 0
        Level-1 CSNPs received 0, sent 0
        Level-1 PSNPs received 0, sent 0
        Level-1 DR Elections: 0
        Level-1 SPF Calculations: 0
        Level-1 Partial Route Calculations: 0

Table 66 describes the fields that might possibly be shown in the display.


Table 66: Show IPX Traffic Field Descriptions
Field Description
Rcvd: Description of the packets received.
593135 total Total number of packets received.
38792 format errors Number of bad packets discarded (for example, packets with a corrupted header).
0 checksum errors Number of packets containing a checksum error. This number should always be 0, because IPX does not use a checksum.
0 bad hop count Number of packets discarded because their hop count exceeded 16 (that is, the packets timed out).
21542 packets pitched Number of times the device received its own broadcast packet.
295493 local destination Number of packets sent to the local broadcast address or specifically to the router.
0 multicast Number of packets received that were addressed to multiple destinations.
Bcast: Description of the broadcast packets the router has received and sent.
295465 received Number of broadcast packets received.
346725 sent Number of broadcast packets sent. It includes broadcast packets the router is either forwarding or has generated.
Sent: Description of those packets that the software generated and then sent, and also those the software has received and then routed to other destinations.
429393 generated Number of packets transmitted that it generated itself.
276100 forwarded Number of packets transmitted that it forwarded from other sources.
0 encapsulation failed Number of packets the software was unable to encapsulate.
0 no route Number of times the software could not locate a route to the destination in the routing table.
SAP: Description of the SAP packets sent and received.
4259 SAP requests Number of SAP requests received.
0 SAP replies Number of SAP replies sent in response to SAP requests.
    35 servers Number of servers in the SAP table.
    0 SAP Nearest Name requests
        0 replies
Number of SAP Nearest Name requests and replies.
    0 SAP General Name requests
       0 replies
Number of SAP General Name requests and replies.
191636 SAP advertisements
received
Number of SAP advertisements received from another router.
277136 sent Number of SAP advertisements generated and then sent.
115 SAP flash updates sent Number of SAP advertisements generated and then sent as a result of a change in its routing table.
0 SAP format errors Number of SAP advertisements that were incorrectly formatted.
RIP: Description of the RIP packets sent and received.
4676 RIP requests Number of RIP requests received.
336 RIP replies Number of RIP replies sent in response to RIP requests.
     18 routes Number of RIP routes in the current routing table.
87274 RIP advertisements
received
Number of RIP advertisements received from another router.
69438 sent Number of RIP advertisements generated and then sent.
74 RIP flash updates sent Number of RIP advertisements generated and then sent as a result of a change in its routing table.
0 RIP format errors Number of RIP packets that were incorrectly formatted.
freed NDB length Number of Network Descriptor Blocks ¬(NDBs) that have been removed from the network but still need to be removed from the router's routing table.
Watchdog: Description of the watchdog packets the software has handled.
0 packets received Number of watchdog packets received from IPX servers on the local network.
0 replies spoofed Number of times the software has responded to a watchdog packet on behalf of the remote client.
Echo: Description of the ping replies and requests sent and received.
Rcvd 55 requests, 0 replies Number of ping requests and replies received.
Sent 0 requests, 0 replies Number of ping requests and replies.
7648 unknown Number of incomprehensible ping packets received.
0 SAPs throttled Number of sap packets discarded because they exceeded buffer capacity.
Queue lengths Description of outgoing packets currently in buffers that are waiting to be processed.
IPX input Number of incoming packets waiting to be processed.
SAP Number of outgoing SAP packets waiting to be processed.
RIP Number of outgoing RIP packets waiting to be processed.
GNS Number of outgoing GNS packets waiting to be processed.
Total length for SAP
throttling purposes
Maximum number of outgoing SAP packets allowed in the buffer. Any packets received beyond this number are discarded.
EIGRP: Description of the Enhanced IGRP packets the router has sent and received.
Updates Number of Enhanced IGRP updates sent and received.
Queries Number of Enhanced IGRP queries sent and received.
Replies Number of Enhanced IGRP replies sent and received.
SAPs Number of SAP packets sent to and received from Enhanced IGRP neighbors.
unknown counter Number of packets the software was unable to forward, for example, because of a misconfigured helper address or because no route was available.

<<John, is this the number of packets that arrived at the router for which the router had no such services to process them?? Or, does this change belong in "7648 unknown" row above?>>

NLSP: Description of the NLSP packets the router has sent and received.
Level-1 Hellos Number of LAN hello packets sent and received.
PTP Hello Number of point-to-point packets sent and received.
Level-1 LSPs Number of link-state packets (LSPs) sent and received.
Level-1 CSNPs Number of complete sequence number PDU (CSNP) packets sent and received.
Level-1 PSNPs Number of partial sequence number PDU (PSNP) packets sent and received.
Level-1 DR Elections Number of times the software has calculated its designated router election priority.
Level-1 SPF Calculations Number of times the software has perform the shortest path first (SPF) calculation.
Level-1 Partial Route
Calculations
Number of times the software has recalculated routes without running SPF.

show sse summary

To display a summary of Silicon Switch Processor (SSP) statistics, use the show sse summary EXEC command.

show sse summary
Syntax Description

This command has no arguments or keywords.

Command Mode

EXEC

Usage Guidelines

This command first appeared in Cisco IOS Release 11.0.

Sample Display

The following is sample output from the show sse summary command:

Router# show sse summary
SSE utilization statistics
               Program words  Rewrite bytes  Internal nodes  Depth
Overhead                 499              1               8
IP                         0              0               0      0
IPX                        0              0               0      0
SRB                        0              0               0      0
CLNP                       0              0               0      0
IP access lists            0              0               0
Total used               499              1               8
Total free             65037         262143
Total available        65536         262144
Free program memory
  [499..65535]
Free rewrite memory
  [1..262143]
Internals
  75032 internal nodes allocated, 75024 freed
  SSE manager process enabled, microcode enabled, 0 hangs
  Longest cache computation 4ms, longest quantum 160ms at 0x53AC8

spf-interval

To control how often the Cisco IOS software performs the Shortest Path First (SPF) calculation, use the spf-interval router configuration command. To restore the default interval, use the no form of this command.

spf-interval seconds
no spf-interval seconds

Syntax Description
seconds Minimum amount of time between SPF calculations, in seconds. It can be a number in the range 1 to 120. The default is 5 seconds.
Default

5 seconds

Command Mode

Router configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 10.3.

SPF calculations are performed only when the topology changes. They are not performed when external routes change.

The spf-interval command controls how often the Cisco IOS software can perform the SPF calculation. The SPF calculation is processor-intensive. Therefore, it may be useful to limit how often this is done, especially when the area is large and the topology changes often. Increasing the SPF interval reduces the processor load of the router, but potentially slows down the rate of convergence.

Example

The following example sets the SPF calculation interval to 30 seconds:

spf-interval 30
Related Commands

ipx router nlsp
log-neighbor-changes
prc-interval

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