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Table of Contents

debug lane client
debug lane config
debug lane finder
debug lane server
debug lane signaling
debug lapb
debug lat packet
debug lex rcmd
debug list
debug llc2 dynwind
debug llc2 errors
debug llc2 packet
debug llc2 state
debug lnm events
debug lnm llc
debug lnm mac
debug local-ack state

debug lane client

Use the debug lane client EXEC command to display information about a LAN Emulation Client (LEC). The no form of this command disables debugging output.

[no] debug lane client {all | le-arp | packet | signaling | state | topology} [interface interface]

Syntax Description

all

Displays all debug information related to the LEC.

le-arp

Displays debug information related to the LANE ARP table.

packet

Displays debug information about each packet.

signaling

Displays debug information related to client SVCs.

state

Displays debug information when the state changes.

topology

Displays debug information related to the topology of the emulated LAN.

interface interface

(Optional) Limits the debugging output to messages that relate to a particular interface or subinterface. If you enter this command multiple times with different interfaces, the last interface entered will be the one used to filter the messages.

Usage Guidelines

The debug lane client all command can generate a large amount of output. Use a limiting keyword or specify a subinterface to decrease the amount of output and focus on the information you need.

Sample Displays

The following is sample output from the debug lane client packet and debug lane client state commands for an LEC joining an emulated LAN (ELAN) called elan1:

Router# debug lane client packet
Router# debug lane client state

The LEC listens for signaling calls to its ATM address (Initial State):

LEC ATM2/0.1: sending LISTEN
LEC ATM2/0.1:   listen on       39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1: received LISTEN

The LEC calls the LAN Emulation Configuration Server (LECS) and attempts to set up the Configure Direct VC (LECS Connect Phase):

LEC ATM2/0.1: sending SETUP
LEC ATM2/0.1:   callid          0x6114D174
LEC ATM2/0.1:   called party    39.020304050607080910111213.00000CA05B43.00
LEC ATM2/0.1:   calling_party   39.020304050607080910111213.00000CA05B40.01

The LEC receives a CONNECT response from the LECS. The Configure Direct VC is established:

LEC ATM2/0.1: received CONNECT
LEC ATM2/0.1:   callid          0x6114D174
LEC ATM2/0.1:   vcd             148

The LEC sends a CONFIG REQUEST to the LECS on the Configure Direct VC (Configuration Phase):

LEC ATM2/0.1: sending LANE_CONFIG_REQ on VCD 148
LEC ATM2/0.1:   SRC MAC address 0000.0ca0.5b40
LEC ATM2/0.1:   SRC ATM address 39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   LAN Type        2
LEC ATM2/0.1:   Frame size      2
LEC ATM2/0.1:   LAN Name        elan1
LEC ATM2/0.1:   LAN Name size   5

The LEC receives a CONFIG RESPONSE from the LECS on the Configure Direct VC:

LEC ATM2/0.1: received LANE_CONFIG_RSP on VCD 148
LEC ATM2/0.1:   SRC MAC address 0000.0ca0.5b40
LEC ATM2/0.1:   SRC ATM address 39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   LAN Type        2
LEC ATM2/0.1:   Frame size      2
LEC ATM2/0.1:   LAN Name        elan1
LEC ATM2/0.1:   LAN Name size   5

The LEC releases the Configure Direct VC:

LEC ATM2/0.1: sending RELEASE
LEC ATM2/0.1:   callid          0x6114D174
LEC ATM2/0.1:   cause code      31

The LEC receives a RELEASE_COMPLETE from the LECS:

LEC ATM2/0.1: received RELEASE_COMPLETE
LEC ATM2/0.1:   callid          0x6114D174
LEC ATM2/0.1:   cause code      16

The LEC calls the LAN Emulation Server (LES) and attempts to set up the Control Direct VC (Join/Registration Phase):

LEC ATM2/0.1: sending SETUP
LEC ATM2/0.1:   callid          0x61167110
LEC ATM2/0.1:   called party    39.020304050607080910111213.00000CA05B41.01
LEC ATM2/0.1:   calling_party   39.020304050607080910111213.00000CA05B40.01

The LEC receives a CONNECT response from the LES. The Control Direct VC is established:

LEC ATM2/0.1: received CONNECT
LEC ATM2/0.1:   callid          0x61167110
LEC ATM2/0.1:   vcd             150

The LEC sends a JOIN REQUEST to the LES on the Control Direct VC:

LEC ATM2/0.1: sending LANE_JOIN_REQ on VCD 150
LEC ATM2/0.1:   Status          0
LEC ATM2/0.1:   LECID           0
LEC ATM2/0.1:   SRC MAC address 0000.0ca0.5b40
LEC ATM2/0.1:   SRC ATM address 39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   LAN Type        2
LEC ATM2/0.1:   Frame size      2
LEC ATM2/0.1:   LAN Name        elan1
LEC ATM2/0.1:   LAN Name size   5

The LEC receives a SETUP request from the LES to set up the Control Distribute VC:

LEC ATM2/0.1: received SETUP
LEC ATM2/0.1:   callid          0x6114D174
LEC ATM2/0.1:   called party    39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   calling_party   39.020304050607080910111213.00000CA05B41.01

The LEC responds to the LES call setup with a CONNECT:

LEC ATM2/0.1: sending CONNECT
LEC ATM2/0.1:   callid          0x6114D174
LEC ATM2/0.1:   vcd             151

A CONNECT_ACK is received from the ATM switch. The Control Distribute VC is established:

LEC ATM2/0.1: received CONNECT_ACK

The LEC receives a JOIN response from the LES on the Control Direct VC:

LEC ATM2/0.1: received LANE_JOIN_RSP on VCD 150
LEC ATM2/0.1:   Status          0
LEC ATM2/0.1:   LECID           1
LEC ATM2/0.1:   SRC MAC address 0000.0ca0.5b40
LEC ATM2/0.1:   SRC ATM address 39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   LAN Type        2
LEC ATM2/0.1:   Frame size      2
LEC ATM2/0.1:   LAN Name        elan1
LEC ATM2/0.1:   LAN Name size   5

The LEC sends an LE_ARP request to the LES to obtain the broadcast-and-unknown (BUS) ATM NSAP address (BUS Connect):

LEC ATM2/0.1: sending LANE_ARP_REQ on VCD 150
LEC ATM2/0.1:   SRC MAC address     0000.0ca0.5b40
LEC ATM2/0.1:   SRC ATM address     39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   TARGET MAC address     ffff.ffff.ffff
LEC ATM2/0.1:   TARGET ATM address  00.000000000000000000000000.000000000000.00

The LEC receives its own LE_ARP request via the LES over the Control Distribute VC:

LEC ATM2/0.1: received LANE_ARP_RSP on VCD 151
LEC ATM2/0.1:   SRC MAC address     0000.0ca0.5b40
LEC ATM2/0.1:   SRC ATM address     39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   TARGET MAC address     ffff.ffff.ffff
LEC ATM2/0.1:   TARGET ATM address  39.020304050607080910111213.00000CA05B42.01

The LEC calls the BUS and attempts to set up the Multicast Send VC:

LEC ATM2/0.1: sending SETUP
LEC ATM2/0.1:   callid          0x6114D354
LEC ATM2/0.1:   called party    39.020304050607080910111213.00000CA05B42.01
LEC ATM2/0.1:   calling_party   39.020304050607080910111213.00000CA05B40.01

The LEC receives a CONNECT response from the BUS. The Multicast Send VC is established:

LEC ATM2/0.1: received CONNECT
LEC ATM2/0.1:   callid          0x6114D354
LEC ATM2/0.1:   vcd             153

The LEC receives a SETUP request from the BUS to set up the Multicast Forward VC:

LEC ATM2/0.1: received SETUP
LEC ATM2/0.1:   callid          0x610D4230
LEC ATM2/0.1:   called party    39.020304050607080910111213.00000CA05B40.01
LEC ATM2/0.1:   calling_party   39.020304050607080910111213.00000CA05B42.01

The LEC responds to the BUS call setup with a CONNECT:

LEC ATM2/0.1: sending CONNECT
LEC ATM2/0.1:   callid          0x610D4230
LEC ATM2/0.1:   vcd             154

A CONNECT_ACK is received from the ATM switch. The Multicast Forward VC is established:

LEC ATM2/0.1: received CONNECT_ACK

The LEC moves into the OPERATIONAL state:

%LANE-5-UPDOWN: ATM2/0.1 elan elan1: LE Client changed state to up 

The following output is the from show lane client command after the LEC joins the emulated LAN as shown in the debug lane client output:

Router# show lane client
LE Client ATM2/0.1  ELAN name: elan1  Admin: up  State: operational
Client ID: 1                 LEC up for 1 minute 2 seconds
Join Attempt: 1
HW Address: 0000.0ca0.5b40   Type: token ring           Max Frame Size: 4544
Ring:1      Bridge:1        ELAN Segment ID: 2048
ATM Address: 39.020304050607080910111213.00000CA05B40.01
 VCD  rxFrames  txFrames  Type       ATM Address
   0         0         0  configure  39.020304050607080910111213.00000CA05B43.00
 142         1         2  direct     39.020304050607080910111213.00000CA05B41.01
 143         1         0  distribute 39.020304050607080910111213.00000CA05B41.01
 145         0         0  send       39.020304050607080910111213.00000CA05B42.01
 146         1         0  forward    39.020304050607080910111213.00000CA05B42.01

The following is sample output from the debug lane client all command when an interface with an LECS, an LES/BUS, and an LEC is shut down:

Router# debug lane client all
LEC ATM1/0.2: received RELEASE_COMPLETE
LEC ATM1/0.2:   callid		0x60E8B474
LEC ATM1/0.2:   cause code	0
LEC ATM1/0.2: action A_PROCESS_REL_COMP
LEC ATM1/0.2: action A_TEARDOWN_LEC
LEC ATM1/0.2: sending RELEASE
LEC ATM1/0.2:   callid		0x60EB6160
LEC ATM1/0.2:   cause code	31
LEC ATM1/0.2: sending RELEASE
LEC ATM1/0.2:   callid		0x60EB7548
LEC ATM1/0.2:   cause code	31
LEC ATM1/0.2: sending RELEASE
LEC ATM1/0.2:   callid		0x60EB9E48
LEC ATM1/0.2:   cause code	31
LEC ATM1/0.2: sending CANCEL
LEC ATM1/0.2:   ATM address	47.00918100000000613E5A2F01.006070174820.02
LEC ATM1/0.2: state ACTIVE event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.3: received RELEASE_COMPLETE
LEC ATM1/0.3:   callid		0x60E8D108
LEC ATM1/0.3:   cause code	0
LEC ATM1/0.3: action A_PROCESS_REL_COMP
LEC ATM1/0.3: action A_TEARDOWN_LEC
LEC ATM1/0.3: sending RELEASE
LEC ATM1/0.3:   callid		0x60EB66D4
LEC ATM1/0.3:   cause code	31
LEC ATM1/0.3: sending RELEASE
LEC ATM1/0.3:   callid		0x60EB7B8C
LEC ATM1/0.3:   cause code	31
LEC ATM1/0.3: sending RELEASE
LEC ATM1/0.3:   callid		0x60EBA3BC
LEC ATM1/0.3:   cause code	31
LEC ATM1/0.3: sending CANCEL
LEC ATM1/0.3:   ATM address	47.00918100000000613E5A2F01.006070174820.03
LEC ATM1/0.3: state ACTIVE event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.2: received RELEASE_COMPLETE
LEC ATM1/0.2:   callid		0x60EB7548
LEC ATM1/0.2:   cause code	0
LEC ATM1/0.2: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.2: state TERMINATING event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.3: received RELEASE_COMPLETE
LEC ATM1/0.3:   callid		0x60EB7B8C
LEC ATM1/0.3:   cause code	0
LEC ATM1/0.3: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.3: state TERMINATING event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.1: received RELEASE_COMPLETE
LEC ATM1/0.1:   callid		0x60EBC458
LEC ATM1/0.1:   cause code	0
LEC ATM1/0.1: action A_PROCESS_REL_COMP
LEC ATM1/0.1: action A_TEARDOWN_LEC
LEC ATM1/0.1: sending RELEASE
LEC ATM1/0.1:   callid		0x60EBD30C
LEC ATM1/0.1:   cause code	31
LEC ATM1/0.1: sending RELEASE
LEC ATM1/0.1:   callid		0x60EBDD28
LEC ATM1/0.1:   cause code	31
LEC ATM1/0.1: sending RELEASE
LEC ATM1/0.1:   callid		0x60EBF174
LEC ATM1/0.1:   cause code	31
LEC ATM1/0.1: sending CANCEL
LEC ATM1/0.1:   ATM address	47.00918100000000613E5A2F01.006070174820.01
LEC ATM1/0.1: state ACTIVE event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.1: received RELEASE_COMPLETE
LEC ATM1/0.1:   callid		0x60EBDD28
LEC ATM1/0.1:   cause code	0
LEC ATM1/0.1: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.1: state TERMINATING event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.2: received RELEASE_COMPLETE
LEC ATM1/0.2:   callid		0x60EB6160
LEC ATM1/0.2:   cause code	0
LEC ATM1/0.2: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.2: state TERMINATING event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.3: received RELEASE_COMPLETE
LEC ATM1/0.3:   callid		0x60EB66D4
LEC ATM1/0.3:   cause code	0
LEC ATM1/0.3: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.3: state TERMINATING event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.2: received RELEASE_COMPLETE
LEC ATM1/0.2:   callid		0x60EB9E48
LEC ATM1/0.2:   cause code	0
LEC ATM1/0.2: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.2: state TERMINATING event LEC_SIG_RELEASE_COMP => IDLE
LEC ATM1/0.3: received RELEASE_COMPLETE
LEC ATM1/0.3:   callid		0x60EBA3BC
LEC ATM1/0.3:   cause code	0
LEC ATM1/0.3: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.3: state TERMINATING event LEC_SIG_RELEASE_COMP => IDLE
LEC ATM1/0.1: received RELEASE_COMPLETE
LEC ATM1/0.1:   callid		0x60EBD30C
LEC ATM1/0.1:   cause code	0
LEC ATM1/0.1: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.1: state TERMINATING event LEC_SIG_RELEASE_COMP => TERMINATING
LEC ATM1/0.1: received RELEASE_COMPLETE
LEC ATM1/0.1:   callid		0x60EBF174
LEC ATM1/0.1:   cause code	0
LEC ATM1/0.1: action A_PROCESS_TERM_REL_COMP
LEC ATM1/0.1: state TERMINATING event LEC_SIG_RELEASE_COMP => IDLE
LEC ATM1/0.2: received CANCEL
LEC ATM1/0.2: state IDLE event LEC_SIG_CANCEL => IDLE
LEC ATM1/0.3: received CANCEL
LEC ATM1/0.3: state IDLE event LEC_SIG_CANCEL => IDLE
LEC ATM1/0.1: received CANCEL
LEC ATM1/0.1: state IDLE event LEC_SIG_CANCEL => IDLE
LEC ATM1/0.1: action A_SHUTDOWN_LEC
LEC ATM1/0.1: sending CANCEL
LEC ATM1/0.1:   ATM address	47.00918100000000613E5A2F01.006070174820.01
LEC ATM1/0.1: state IDLE event LEC_LOCAL_DEACTIVATE => IDLE
LEC ATM1/0.2: action A_SHUTDOWN_LEC
LEC ATM1/0.2: sending CANCEL
LEC ATM1/0.2:   ATM address	47.00918100000000613E5A2F01.006070174820.02
LEC ATM1/0.2: state IDLE event LEC_LOCAL_DEACTIVATE => IDLE
LEC ATM1/0.3: action A_SHUTDOWN_LEC
LEC ATM1/0.3: sending CANCEL
LEC ATM1/0.3:   ATM address	47.00918100000000613E5A2F01.006070174820.03
LEC ATM1/0.3: state IDLE event LEC_LOCAL_DEACTIVATE => IDLE

debug lane config

Use the debug lane config EXEC command to display information about a LANE configuration server. The no form of this command disables debugging output.

[no] debug lane config {all | events | packets}

Syntax Description

all

Display all debug messages related to the LANE configuration server. The output includes both the events and packets types of output.

events

Display only messages related to significant LANE configuration server events.

packets

Display information on each packet sent or received by the LANE configuration server.

Usage Guidelines

The debug lane config output is intended to be used primarily by a Cisco technical support representative.

Sample Display

The following is sample output from the debug lane config all command when an interface with an LECS, an LES/BUS, and an LEC is shut down:

Router# debug lane config all
LECS EVENT ATM1/0: processing interface down transition
LECS EVENT ATM1/0: placed de-register address 0x60E8A824 
(47.00918100000000613E5A2F01.006070174823.00) request with signalling
LECS EVENT ATM1/0: ilmiDeRegisterAddress: sendSetRequestToILMI failure; interface down 
?
LECS EVENT ATM1/0: placed de-register address 0x60EC4F28 
(47.007900000000000000000000.00A03E000001.00) request with signalling
LECS EVENT ATM1/0: ilmiDeRegisterAddress: sendSetRequestToILMI failure; interface down 
?
LECS EVENT ATM1/0: placed de-register address 0x60EC5C08 
(47.00918100000000613E5A2F01.006070174823.99) request with signalling
LECS EVENT ATM1/0: ilmiDeRegisterAddress: sendSetRequestToILMI failure; interface down 
?
LECS EVENT ATM1/0: tearing down all connexions
LECS EVENT ATM1/0: elan 'xxx' LES 47.00918100000000613E5A2F01.006070174821.01 callId 
0x60CE0F58 deliberately being disconnected
LECS EVENT ATM1/0: sending RELEASE for call 0x60CE0F58 cause 31
LECS EVENT ATM1/0: elan 'yyy' LES 47.00918100000000613E5A2F01.006070174821.02 callId 
0x60CE2104 deliberately being disconnected
LECS EVENT ATM1/0: sending RELEASE for call 0x60CE2104 cause 31
LECS EVENT ATM1/0: elan 'zzz' LES 47.00918100000000613E5A2F01.006070174821.03 callId 
0x60CE2DC8 deliberately being disconnected
LECS EVENT ATM1/0: sending RELEASE for call 0x60CE2DC8 cause 31
LECS EVENT ATM1/0: All calls to/from LECSs are being released
LECS EVENT ATM1/0: placed de-register address 0x60EC4F28 
(47.007900000000000000000000.00A03E000001.00) request with signalling
LECS EVENT ATM1/0: ilmiDeRegisterAddress: sendSetRequestToILMI failure; interface down 
?
LECS EVENT ATM1/0: ATM_RELEASE_COMPLETE received: callId 0x60CE0F58 cause 0
LECS EVENT ATM1/0: call 0x60CE0F58 cleaned up
LECS EVENT ATM1/0: ATM_RELEASE_COMPLETE received: callId 0x60CE2104 cause 0
LECS EVENT ATM1/0: call 0x60CE2104 cleaned up
LECS EVENT ATM1/0: ATM_RELEASE_COMPLETE received: callId 0x60CE2DC8 cause 0
LECS EVENT ATM1/0: call 0x60CE2DC8 cleaned up
LECS EVENT ATM1/0: UNKNOWN/UNSET: signalling DE-registered
LECS EVENT: UNKNOWN/UNSET: signalling DE-registered
LECS EVENT ATM1/0: UNKNOWN/UNSET: signalling DE-registered
LECS EVENT ATM1/0: placed de-register address 0x60E8A824 
(47.00918100000000613E5A2F01.006070174823.00) request with signalling
LECS EVENT ATM1/0: ilmiDeRegisterAddress: sendSetRequestToILMI failure; interface down 
?
LECS EVENT ATM1/0: placed de-register address 0x60EC5C08 
(47.00918100000000613E5A2F01.006070174823.99) request with signalling
LECS EVENT ATM1/0: ilmiDeRegisterAddress: sendSetRequestToILMI failure; interface down 
?
LECS EVENT ATM1/0: tearing down all connexions
LECS EVENT ATM1/0: All calls to/from LECSs are being released
LECS EVENT: config server 56 killed

debug lane finder

Use the debug lane finder EXEC command to display information about the finder internal state machine. The no form of this command disables debugging output.

[no] debug lane finder

Usage Guidelines

The debug lane finder output is intended to be used primarily by a Cisco technical support representative.

Sample Display

The following is sample output from the debug lane finder command when an interface with an LECS, an LES/BUS, and an LEC is shut down:

Router# debug lane finder
LECS FINDER ATM1/0.3: user request 1819 of type GET_MASTER_LECS_ADDRESS queued up
LECS FINDER ATM1/0: finder state machine started
LECS FINDER ATM1/0: time to perform a getNext on the ILMI
LECS FINDER ATM1/0: LECS 47.00918100000000613E5A2F01.006070174823.00 deleted
LECS FINDER ATM1/0: ilmi_client_request failed, answering all users
LECS FINDER ATM1/0: answering all requests now
LECS FINDER ATM1/0: responded to user request 1819
LECS FINDER ATM1/0: number of remaining requests still to be processed: 0
LECS FINDER ATM1/0.2: user request 1820 of type GET_MASTER_LECS_ADDRESS queued up
LECS FINDER ATM1/0: finder state machine started
LECS FINDER ATM1/0: time to perform a getNext on the ILMI
LECS FINDER ATM1/0: ilmi_client_request failed, answering all users
LECS FINDER ATM1/0: answering all requests now
LECS FINDER ATM1/0: responded to user request 1820
LECS FINDER ATM1/0: number of remaining requests still to be processed: 0
LECS FINDER ATM1/0.1: user request 1821 of type GET_MASTER_LECS_ADDRESS queued up
LECS FINDER ATM1/0: finder state machine started
LECS FINDER ATM1/0: time to perform a getNext on the ILMI
LECS FINDER ATM1/0: ilmi_client_request failed, answering all users
LECS FINDER ATM1/0: answering all requests now
LECS FINDER ATM1/0: responded to user request 1821
LECS FINDER ATM1/0: number of remaining requests still to be processed: 0

debug lane server

Use the debug lane server EXEC command to display information about a LANE server. The no form of this command disables debugging output.

[no] debug lane server [interface interface]

Syntax Description

interface interface

(Optional) Limits the debugging output to messages relating to a specific interface or subinterface. If you use this command multiple times with different interfaces, the last interface entered is the one used to filter debug messages.

Usage Guidelines

The debug lane server output is intended to be used primarily by a Cisco technical support representative. The debug lane server command can generate a large amount of output. Specify a subinterface to decrease the amount of output and focus on the information you need.

Sample Display

The following is sample output from the debug lane server command when an interface with an LECS, an LES/BUS, and an LEC is shut down:

    Router# debug lane server

    LES ATM1/0.1: lsv_lecsAccessSigCB called with callId 0x60CE124C, opcode ATM_RELEASE_COMPLETE

    LES ATM1/0.1: disconnected from the master LECS

    LES ATM1/0.1: should have been connected, will reconnect in 3 seconds

    LES ATM1/0.2: lsv_lecsAccessSigCB called with callId 0x60CE29E0, opcode ATM_RELEASE_COMPLETE

    LES ATM1/0.2: disconnected from the master LECS

    LES ATM1/0.2: should have been connected, will reconnect in 3 seconds

    LES ATM1/0.3: lsv_lecsAccessSigCB called with callId 0x60EB1940, opcode ATM_RELEASE_COMPLETE

    LES ATM1/0.3: disconnected from the master LECS

    LES ATM1/0.3: should have been connected, will reconnect in 3 seconds

    LES ATM1/0.2: elan yyy client 1 lost control distribute

    LES ATM1/0.2: elan yyy client 1: lsv_kill_client called

    LES ATM1/0.2: elan yyy client 1 state change Oper -> Term

    LES ATM1/0.3: elan zzz client 1 lost control distribute

    LES ATM1/0.3: elan zzz client 1: lsv_kill_client called

    LES ATM1/0.3: elan zzz client 1 state change Oper -> Term

    LES ATM1/0.2: elan yyy client 1 lost MC forward

    LES ATM1/0.2: elan yyy client 1: lsv_kill_client called

    LES ATM1/0.3: elan zzz client 1 lost MC forward

    LES ATM1/0.3: elan zzz client 1: lsv_kill_client called

    LES ATM1/0.1: elan xxx client 1 lost control distribute

    LES ATM1/0.1: elan xxx client 1: lsv_kill_client called

    LES ATM1/0.1: elan xxx client 1 state change Oper -> Term

    LES ATM1/0.1: elan xxx client 1 lost MC forward

    LES ATM1/0.1: elan xxx client 1: lsv_kill_client called

    LES ATM1/0.2: elan yyy client 1 released control direct

    LES ATM1/0.2: elan yyy client 1: lsv_kill_client called

    LES ATM1/0.3: elan zzz client 1 released control direct

    LES ATM1/0.3: elan zzz client 1: lsv_kill_client called

    LES ATM1/0.2: elan yyy client 1 MC forward released

    LES ATM1/0.2: elan yyy client 1: lsv_kill_client called

    LES ATM1/0.2: elan yyy client 1: freeing client structures

    LES ATM1/0.2: elan yyy client 1 unregistered 0060.7017.4820

    LES ATM1/0.2: elan yyy client 1 destroyed

    LES ATM1/0.3: elan zzz client 1 MC forward released

    LES ATM1/0.3: elan zzz client 1: lsv_kill_client called

    LES ATM1/0.3: elan zzz client 1: freeing client structures

    LES ATM1/0.3: elan zzz client 1 unregistered 0060.7017.4820

    LES ATM1/0.3: elan zzz client 1 destroyed

    LES ATM1/0.1: elan xxx client 1 released control direct

    LES ATM1/0.1: elan xxx client 1: lsv_kill_client called

    LES ATM1/0.1: elan xxx client 1 MC forward released

    LES ATM1/0.1: elan xxx client 1: lsv_kill_client called

    LES ATM1/0.1: elan xxx client 1: freeing client structures

    LES ATM1/0.1: elan xxx client 1 unregistered 0060.7017.4820

    LES ATM1/0.1: elan xxx client 1 destroyed

    LES ATM1/0.1: elan xxx major interface state change

    LES ATM1/0.1: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.1: shutting down

    LES ATM1/0.1: elan xxx: lsv_kill_lesbus called

    LES ATM1/0.1: elan xxx: LES/BUS state change operational -> terminating

    LES ATM1/0.1: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.2: elan yyy major interface state change

    LES ATM1/0.2: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.2: shutting down

    LES ATM1/0.2: elan yyy: lsv_kill_lesbus called

    LES ATM1/0.2: elan yyy: LES/BUS state change operational -> terminating

    LES ATM1/0.2: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.3: elan zzz major interface state change

    LES ATM1/0.3: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.3: shutting down

    LES ATM1/0.3: elan zzz: lsv_kill_lesbus called

    LES ATM1/0.3: elan zzz: LES/BUS state change operational -> terminating

    LES ATM1/0.3: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.1: elan xxx: lsv_kill_lesbus called

    LES ATM1/0.1: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.1: elan xxx: lsv_kill_lesbus called

    LES ATM1/0.1: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.1: elan xxx: stopped listening on addresses

    LES ATM1/0.1: elan xxx: all clients killed

    LES ATM1/0.1: elan xxx: multicast groups killed

    LES ATM1/0.1: elan xxx: addresses de-registered from ilmi

    LES ATM1/0.1: elan xxx: LES/BUS state change terminating -> down

    LES ATM1/0.1: elan xxx: administratively down

    LES ATM1/0.2: elan yyy: lsv_kill_lesbus called

    LES ATM1/0.2: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.2: elan yyy: lsv_kill_lesbus called

    LES ATM1/0.2: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.2: elan yyy: stopped listening on addresses

    LES ATM1/0.2: elan yyy: all clients killed

    LES ATM1/0.2: elan yyy: multicast groups killed

    LES ATM1/0.2: elan yyy: addresses de-registered from ilmi

    LES ATM1/0.2: elan yyy: LES/BUS state change terminating -> down

    LES ATM1/0.2: elan yyy: administratively down

    LES ATM1/0.3: elan zzz: lsv_kill_lesbus called

    LES ATM1/0.3: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.3: elan zzz: lsv_kill_lesbus called

    LES ATM1/0.3: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.3: elan zzz: stopped listening on addresses

    LES ATM1/0.3: elan zzz: all clients killed

    LES ATM1/0.3: elan zzz: multicast groups killed

    LES ATM1/0.3: elan zzz: addresses de-registered from ilmi

    LES ATM1/0.3: elan zzz: LES/BUS state change terminating -> down

    LES ATM1/0.3: elan zzz: administratively down

    LES ATM1/0.3: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.2: cleanupLecsAccess: discarding all validation requests

    LES ATM1/0.1: cleanupLecsAccess: discarding all validation requests

debug lane signaling

Use the debug lane signaling EXEC command to display information about LANE Server and BUS switched virtual circuits (SVCs). The no form of this command disables debugging output.

[no] debug lane signaling [interface interface]

Syntax Description

interface interface

(Optional) Limits the debugging output to messages that relate to a particular interface or subinterface. If you enter this command multiple times with different interfaces, the last interface entered will be the one used to filter debug messages.

Usage Guidelines

The debug lane signaling output is intended to be used primarily by a Cisco technical support representative.

The debug lane signaling command can generate a large amount of output. Specify a subinterface to decrease the amount of output and focus on the information you need.

Sample Display

The following is sample output from the debug lane signaling command when an interface with an LECS, an LES/BUS, and an LEC is shut down:

Router# debug lane signaling
LANE SIG ATM1/0.2: received ATM_RELEASE_COMPLETE callid 0x60EB565C cause 0 lv 
0x60E8D348 lvstate LANE_VCC_CONNECTED
LANE SIG ATM1/0.2: lane_sig_mc_release: breaking lv 0x60E8D348 from mcg 0x60E97E84
LANE SIG ATM1/0.2: timer for lv 0x60E8D348 stopped
LANE SIG ATM1/0.2: sent ATM_RELEASE request for lv 0x60E8D468 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.2: sent ATM_RELEASE request for lv 0x60E8D3D8 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.2: sent ATM_RELEASE request for lv 0x60E8D2B8 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.3: received ATM_RELEASE_COMPLETE callid 0x60EB5CA0 cause 0 lv 
0x60E8BEF4 lvstate LANE_VCC_CONNECTED
LANE SIG ATM1/0.3: lane_sig_mc_release: breaking lv 0x60E8BEF4 from mcg 0x60E9A37C
LANE SIG ATM1/0.3: timer for lv 0x60E8BEF4 stopped
LANE SIG ATM1/0.3: sent ATM_RELEASE request for lv 0x60E8C014 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.3: sent ATM_RELEASE request for lv 0x60E8BF84 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.3: sent ATM_RELEASE request for lv 0x60E8BE64 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.2: received ATM_RELEASE_COMPLETE callid 0x60EB9040 cause 0 lv 
0x60E8D468 lvstate LANE_VCC_DROP_SENT
LANE SIG ATM1/0.2: lane_sig_mc_release: breaking lv 0x60E8D468 from mcg 0x60E97EC8
LANE SIG ATM1/0.2: timer for lv 0x60E8D468 stopped
LANE SIG ATM1/0.3: received ATM_RELEASE_COMPLETE callid 0x60EB97D4 cause 0 lv 
0x60E8C014 lvstate LANE_VCC_DROP_SENT
LANE SIG ATM1/0.3: lane_sig_mc_release: breaking lv 0x60E8C014 from mcg 0x60E9A3C0
LANE SIG ATM1/0.3: timer for lv 0x60E8C014 stopped
LANE SIG ATM1/0.1: received ATM_RELEASE_COMPLETE callid 0x60EBCEB8 cause 0 lv 
0x60EBBAF0 lvstate LANE_VCC_CONNECTED
LANE SIG ATM1/0.1: lane_sig_mc_release: breaking lv 0x60EBBAF0 from mcg 0x60E8F51C
LANE SIG ATM1/0.1: timer for lv 0x60EBBAF0 stopped
LANE SIG ATM1/0.1: sent ATM_RELEASE request for lv 0x60EBBC10 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.1: sent ATM_RELEASE request for lv 0x60EBBB80 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.1: sent ATM_RELEASE request for lv 0x60EBBA60 in state 
LANE_VCC_CONNECTED
LANE SIG ATM1/0.1: received ATM_RELEASE_COMPLETE callid 0x60EBEB00 cause 0 lv 
0x60EBBC10 lvstate LANE_VCC_DROP_SENT
LANE SIG ATM1/0.1: lane_sig_mc_release: breaking lv 0x60EBBC10 from mcg 0x60E8F560
LANE SIG ATM1/0.1: timer for lv 0x60EBBC10 stopped
LANE SIG ATM1/0.2: received ATM_RELEASE_COMPLETE callid 0x60E8B174 cause 0 lv 
0x60E8D2B8 lvstate LANE_VCC_RELEASE_SENT
LANE SIG ATM1/0.2: timer for lv 0x60E8D2B8 stopped
LANE SIG ATM1/0.3: received ATM_RELEASE_COMPLETE callid 0x60E8B990 cause 0 lv 
0x60E8BE64 lvstate LANE_VCC_RELEASE_SENT
LANE SIG ATM1/0.3: timer for lv 0x60E8BE64 stopped
LANE SIG ATM1/0.2: received ATM_RELEASE_COMPLETE callid 0x60EB7FE0 cause 0 lv 
0x60E8D3D8 lvstate LANE_VCC_RELEASE_SENT
LANE SIG ATM1/0.2: timer for lv 0x60E8D3D8 stopped
LANE SIG ATM1/0.3: received ATM_RELEASE_COMPLETE callid 0x60EB8554 cause 0 lv 
0x60E8BF84 lvstate LANE_VCC_RELEASE_SENT
LANE SIG ATM1/0.3: timer for lv 0x60E8BF84 stopped
LANE SIG ATM1/0.1: received ATM_RELEASE_COMPLETE callid 0x60EBB6D4 cause 0 lv 
0x60EBBA60 lvstate LANE_VCC_RELEASE_SENT
LANE SIG ATM1/0.1: timer for lv 0x60EBBA60 stopped
LANE SIG ATM1/0.1: received ATM_RELEASE_COMPLETE callid 0x60EBE24C cause 0 lv 
0x60EBBB80 lvstate LANE_VCC_RELEASE_SENT
LANE SIG ATM1/0.1: timer for lv 0x60EBBB80 stopped
LANE SIG ATM1/0.1: sent ATM_CANCEL_NSAP request for lv 0x0 in state NULL_VCC_POINTER
LANE SIG ATM1/0.1: sent ATM_CANCEL_NSAP request for lv 0x0 in state NULL_VCC_POINTER
LANE SIG ATM1/0.2: sent ATM_CANCEL_NSAP request for lv 0x0 in state NULL_VCC_POINTER
LANE SIG ATM1/0.2: sent ATM_CANCEL_NSAP request for lv 0x0 in state NULL_VCC_POINTER
LANE SIG ATM1/0.3: sent ATM_CANCEL_NSAP request for lv 0x0 in state NULL_VCC_POINTER
LANE SIG ATM1/0.3: sent ATM_CANCEL_NSAP request for lv 0x0 in state NULL_VCC_POINTER
LANE SIG ATM1/0.1: received ATM_CANCEL_NSAP for nsap 
00.000000000000050000000000.000000000000.00
LANE SIG ATM1/0.1: received ATM_CANCEL_NSAP for nsap 
00.000000000000050000000000.000000000000.00
LANE SIG ATM1/0.2: received ATM_CANCEL_NSAP for nsap 
00.000000000000050000000000.000000000000.00
LANE SIG ATM1/0.2: received ATM_CANCEL_NSAP for nsap 
00.000000000000050000000000.000000000000.00
LANE SIG ATM1/0.3: received ATM_CANCEL_NSAP for nsap 
00.000000000000050000000000.000000000000.00
LANE SIG ATM1/0.3: received ATM_CANCEL_NSAP for nsap 
00.000000000000050000000000.000000000000.00

debug lapb

Use the debug lapb EXEC command to display all traffic for interfaces using Link Access Procedure, Balanced (LAPB) encapsulation. The no form of this command disables debugging output.

[no] debug lapb

Usage Guidelines

This command displays information on the X.25 Layer 2 protocol. It is useful to users who are familiar with the LAPB protocol.

You can use the debug lapb command to determine why X.25 interfaces or LAPB connections are going up and down. It is also useful for identifying link problems, as evidenced when show interfaces command displays a high number of rejects or frame errors over the X.25 link.

Caution Because the debug lapb command generates a lot of output, use it when the aggregate of all LAPB traffic on X.25 and LAPB interfaces is fewer than five frames per second.

Sample Display

The following is sample output from the debug lapb command. (The numbers 1 through 7 at the top of the display have been added in order to aid documentation.)

1            2   3    4     5    6    7
Serial0: LAPB I CONNECT (5) IFRAME P 2 1
Serial0: LAPB O REJSENT (2) REJ F 3
Serial0: LAPB O REJSENT (5) IFRAME 0 3
Serial0: LAPB I REJSENT (2) REJ (C) 7
Serial0: LAPB I DISCONNECT (2) SABM P
Serial0: LAPB O CONNECT (2) UA F
Serial0: LAPB O CONNECT (5) IFRAME 0 0
Serial0: LAPB T1 CONNECT 357964 0

Each line of output describes a LAPB event. There are two types of LAPB events: frame events (when a frame enters or exits the LAPB) and timer events. In the sample output, the last line describes a timer event; all of the other lines describe frame events. Table 85 describes the first seven fields.


Table 85: Debug LAPB Field Descriptions
Field Description

First field (1)

Interface type and unit number reporting the frame event.

Second field (2)

Protocol providing the information.

Third field (3)

Frame event type. Possible values follow:

  • I---Frame input

  • O---Frame output

  • T1---T1 timer expired

  • T3---Interface outage timer expired

  • T4---Idle link timer expired

Fourth field (4)

State of the protocol when the frame event occurred. Possible values follow:

  • BUSY (RNR frame received)

  • CONNECT

  • DISCONNECT

  • DISCSENT (disconnect sent)

  • ERROR (FRMR frame sent)

  • REJSENT (reject frame sent)

  • SABMSENT (SABM frame sent)

Fifth field (5)

In a frame event, this value is the size of the frame (in bytes). In a timer event, this value is the current timer value (in milliseconds).

Sixth field (6)

In a frame event, this value is the frame type name. Possible values for frame type names follow:

  • DISC---Disconnect

  • DM---Disconnect mode

  • FRMR---Frame reject

  • IFRAME---Information frame

  • ILLEGAL---Illegal LAPB frame

  • REJ---Reject

  • RNR---Receiver not ready

  • RR---Receiver ready

  • SABM---Set asynchronous balanced mode

  • SABME---Set asynchronous balanced mode, extended

  • UA---Unnumbered acknowledgment

In a T1 timer event, this value is the number of retransmissions already attempted.

Seventh field (7)

(This field will not print if the frame control field is required to appear as either a command or a response, and that frame type is correct.)

This field is only present in frame events. It describes the frame type identified by the LAPB address and Poll/Final bit. Possible values are as follows:

  • (C)---Command frame

  • (R)---Response frame

  • P---Command/Poll frame

  • F---Response/Final frame

  • /ERR---Command/Response type is invalid for the control field. An  ?ERR generally means that the DTE/DCE assignments are not correct for this link.

  • BAD-ADDR---Address field is neither Command nor Response

A timer event only displays the first six fields of debug lapb output. For frame events, however, the fields that follow the sixth field document the LAPB control information present in the frame. Depending on the value of the frame type name shown in the sixth field, these fields may or may not appear. Descriptions of the fields following the first six fields follow.

After the Poll/Final indicator, depending on the frame type, three different types of LAPB control information can be printed.

For information frames, the value of the N(S) field and the N(R) field will be printed. The N(S) field of an information frame is the sequence number of that frame, so this field will rotate between 0 and 7 for (modulo 8 operation) or 0 and 127 (for modulo 128 operation) for successive outgoing information frames and (under normal circumstances) also will rotate for incoming information frame streams. The N(R) field is a "piggybacked" acknowledgment for the incoming information frame stream; it informs the other end of the link what sequence number is expected next.

RR, RNR, and REJ frames have an N(R) field, so the value of that field is printed. This field has exactly the same significance that it does in an information frame.

For the FRMR frame, the error information is decoded to display the rejected control field, V(R) and V(S) values, the Response/Command flag, and the error flags WXYZ.

In the following example, the output shows an idle link timer action (T4) where the timer expires twice on an idle link, with the value of T4 set to five seconds:

Serial2: LAPB T4 CONNECT 255748
Serial2: LAPB O CONNECT (2) RR P 5
Serial2: LAPB I CONNECT (2) RR F 5
Serial2: LAPB T4 CONNECT 260748
Serial2: LAPB O CONNECT (2) RR P 5
Serial2: LAPB I CONNECT (2) RR F 5

The next example shows an interface outage timer expiration (T3):

Serial2: LAPB T3 DISCONNECT 273284

The following example output shows an error condition when no DCE to DTE connection exists. Note that if a frame has only one valid type (for example, a SABM can only be a command frame), a received frame that has the wrong frame type will be flagged as a receive error (R/ERR in the following output). This feature makes misconfigured links (DTE-DTE or DCE-DCE) easy to spot. Other, less common errors will be highlighed too, such as a too-short or too-long frame, or an invalid address (neither command nor response).

Serial2: LAPB T1 SABMSENT 1026508 1
Serial2: LAPB O SABMSENT (2) SABM P
Serial2: LAPB I SABMSENT (2) SABM (R/ERR)
Serial2: LAPB T1 SABMSENT 1029508 2
Serial2: LAPB O SABMSENT (2) SABM P
Serial2: LAPB I SABMSENT (2) SABM (R/ERR)

The output in the next example shows the router is misconfigured and has a standard (modulo 8) interface connected to an extended (modulo 128) interface. This condition is indicated by the SABM balanced mode and SABME balanced mode extended messages appearing on the same interface.

Serial2: LAPB T1 SABMSENT 1428720 0
Serial2: LAPB O SABMSENT (2) SABME P
Serial2: LAPB I SABMSENT (2) SABM P
Serial2: LAPB T1 SABMSENT 1431720 1
Serial2: LAPB O SABMSENT (2) SABME P
Serial2: LAPB I SABMSENT (2) SABM P

debug lat packet

Use the debug lat packet EXEC command to display information on all LAT events. The no form of this command disables debugging output.

[no] debug lat packet

Usage Guidelines

For each datagram (packet) received or transmitted, a message is logged to the console.


Note This command severely impacts LAT performance and is intended for troubleshooting use only.

Sample Display

The following is sample output from the debug lat packet command:

Router# debug lat packet
LAT: I int=Ethernet0, src=0000.0c01.0509, dst=0900.2b00.000f, type=0, M=0, R=0
LAT: I int=Ethernet0, src=0800.2b11.2d13, dst=0000.0c01.7876, type=A, M=0, R=0
LAT: O dst=0800.2b11.2d13, int=Ethernet0, type= A, M=0, R=0, len= 20, next 0 ref 1

The second line of output describes a packet that is input to the router. Table 86 describes the fields in this line.


Table 86: Debug LAT Packet Field Descriptions
Field Description

LAT:

Indicates that this display shows LAT debugging output.

I

Indicates that this line of output describes a packet that is input to the router (I) or output from the router (O).

int = Ethernet0

Indicates the interface on which the packet event took place.

src = 0800.2b11.2d13

Indicates the source address of the packet.

dst = 0000.0c01.7876

Indicates the destination address of the packet.

type = A

Indicates the message type (in hexadecimal). Possible values are as follows:

  • 0 = Run Circuit

  • 1 = Start Circuit

  • 2 = Stop Circuit

  • A = Service Announcement

  • C = Command

  • D = Status

  • E = Solicit Information

  • F = Response Information

The third line of output describes a packet that is output from the router. Table 87 describes the last three fields in this line.


Table 87: Debug LAT Packet Field Descriptions
Field Description

len= 20

Indicates the length (hexadecimal) of the packet in bytes.

next 0

Indicates the link on transmit queue.

ref 1

Indicates the count of packet users.

debug lex rcmd

Use the debug lex rcmd EXEC command to debug LAN Extender remote commands. The no form of this command disables debugging output.

[no] debug lex rcmd

Sample Display

The following is sample output from the debug lex rcmd command:

Router# debug lex rcmd
LEX-RCMD: "shutdown" command received on unbound serial interface- Serial0
LEX-RCMD: Lex0: "inventory" command received
Rcvd rcmd: FF 03 80 41 41 13 00 1A 8A 00 00 16 01 FF 00 00
Rcvd rcmd: 00 02 00 00 07 5B CD 15 00 00 0C 01 15 26
LEX-RCMD: ACK or response received on Serial0 without a corresponding ID
LEX-RCMD: REJ received
LEX-RCMD: illegal CODE field received in header: <number>
LEX-RCMD: illegal length for Lex0: "lex input-type-list"
LEX-RCMD: Lex0 is not bound to a serial interface
LEX-RCMD: encapsulation failure
LEX-RCMD: timeout for Lex0: "lex priority-group" command
LEX-RCMD: re-transmitting Lex0: "lex priority-group" command
LEX-RCMD: lex_setup_and_send called with invalid parameter
LEX-RCMD: bind occurred on shutdown LEX interface
LEX-RCMD: Serial0- No free Lex interface found with negotiated MAC address 
0000.0c00.d8db
LEX-RCMD: No active Lex interface found for unbind

The following output indicates that a LAN Extender remote command packet was received on a serial interface that is not bound to a LAN Extender interface:

LEX-RCMD: "shutdown" command received on unbound serial interface- Serial0

This message can occur for any of the LAN Extender remote commands. Possible causes of this message are as follows:

The following output indicates that a LAN Extender remote command response has been received. The hexadecimal values are for internal use only.

LEX-RCMD: Lex0: "inventory" command received
Rcvd rcmd: FF 03 80 41 41 13 00 1A 8A 00 00 16 01 FF 00 00
Rcvd rcmd: 00 02 00 00 07 5B CD 15 00 00 0C 01 15 26

The following output indicates that when the host router originates a LAN Extender remote command to FLEX, it generates an 8-bit identifier which is used to associate a command with its corresponding response:

LEX-RCMD: ACK or response received on Serial0 without a corresponding ID

This message could be displayed for any of the following reasons:

Possible responses to Config-Request are Config-ACK, Config-NAK, and Config-Rej. The following output shows that some of the options in the Config-Request are not recognizable or are not acceptable to FLEX due to transmission errors or software errors:

LEX-RCMD: REJ received

The following output shows that a LAN Extender remote command response was received but that the CODE field in the header was incorrect:

LEX-RCMD: illegal CODE field received in header: <number>

The following output indicates that a LAN Extender remote command response was received but that it had an incorrect length field. This message can occur for any of the LAN Extender remote commands.

LEX-RCMD: illegal length for Lex0: "lex input-type-list"

The following output shows that a host router was about to send a remote command when the serial link went down:

LEX-RCMD: Lex0 is not bound to a serial interface

The following output shows that the serial interface's encapsulation routine failed to encapsulate the remote command datagram because the LEX-NCP was not in the OPEN state. Due to the way the PPP state machine is implemented, it is normal to see a single encapsulation failure for each remote command that gets sent at bind time.

LEX-RCMD: encapsulation failure

The following output shows that the timer expired for the given remote command without having received a response from the FLEX device. This message can occur for any of the LAN Extender remote commands.

 LEX-RCMD: timeout for Lex0: "lex priority-group" command

This message could be displayed for any of the following reasons:

The following output indicates that the host is retransmitting the remote command after a timeout:

LEX-RCMD: re-transmitting Lex0: "lex priority-group" command

The following output indicates that an illegal parameter was passed to the lex_setup_and_send routine. This message could be displayed for due to a host software error.

LEX-RCMD: lex_setup_and_send called with invalid parameter

The following output is informational and shows when a bind occurs on a shutdown interface:

LEX-RCMD: bind occurred on shutdown LEX interface

The following output shows that LEX-NCP reached the open state and a bind operation was attempted with the FLEX's MAC address, but no free LAN Extender interfaces were found that were configured with that MAC address. This output can occur when the network administrator does not configure a LAN Extender interface with the correct MAC address.

LEX-RCMD: Serial0- No free Lex interface found with negotiated MAC address 
0000.0c00.d8db

The following output shows that the serial line that was bound to the LAN Extender interface went down and the unbind routine was called, but when the list of active LAN Extender interfaces was searched, the LAN Extender interface corresponding to the serial interface was not found. This output usually occurs because of a host software error.

LEX-RCMD: No active Lex interface found for unbind

debug list

Use the debug list EXEC command to filter debugging information on a per-interface or per-access list basis. The no form of this command turns off the list filter.

debug list [list] [interface]
no debug list

Syntax Description

list

(Optional) An access list number in the range of 1100-1199.

interface

(Optional) Interface type. Allowed values include

· channel---IBM Channel interface

· ethernet---IEEE 802.3

· fddi---ANSI X3T9.5

· null---Null interface

· serial---Serial

· tokenring---IEEE 802.5

· tunnel---Tunnel interface

Usage Guidelines

The debug list command is used with other debug commands for specific protocols and interfaces to filter the amount of debug information that is displayed. In particular, this command is designed to filter specific physical unit (PU) output from bridging protocols. The debug list command is supported with the following commands:


Note All debug commands that support access-list filtering use access lists in the range 1100-1199. The access list numbers shown in the examples are merely samples of valid numbers.

Sample Displays

To use debug list on only the first of several LLC2 connections, use the show llc2 command to display the active connections:

Router# show llc2
SdllcVirtualRing2008 DTE: 4000.2222.22c7 4000.1111.111c 04 04 state NORMAL
SdllcVirtualRing2008 DTE: 4000.2222.22c8 4000.1111.1120 04 04 state NORMAL
SdllcVirtualRing2008 DTE: 4000.2222.22c1 4000.1111.1104 04 04 state NORMAL

Next, configure an extended bridging access list, numbered 1103, for the connection you want to filter:

access-list 1103 permit 4000.1111.111c 0000.0000.0000 4000.2222.22c7 0000.0000.0000 
0xC 2 eq 0x404

The convention for LLC debug list filtering is to use dmac=6 bytes, smac=6 bytes, dsap_offset = 12, and ssap_offset = 13.

Finally, you invoke the following debug commands:

Router# debug list 1103
Router# debug llc2 packet
LLC2 Packets debugging is on
for access list: 1103

To use debug list for SDLC connections, with the exception of address 04, create access list 1102 to deny the specific address and permit all others:

access-list 1102 deny 0000.0000.0000 0000.0000.0000 0000.0000.0000 0000.0000.0000 
0xC 1 eq 0x4
access-list 1102 permit 0000.0000.0000 0000.0000.0000 0000.0000.0000 0000.0000.0000

The convention is to use dmac = 0.0.0, smac = 0.0.0, and sdlc_frame_offset = 12.

Invoke the following debug commands:

Router# debug list 1102
Router# debug sdlc
SDLC link debugging is on
for access list: 1102

To enable SDLC debugging (or debugging for any of the other supported protocols) for a specific interface rather than for all interfaces on a router, use the following commands:

Router# debug list serial 0
Router# debug sdlc
SDLC link debugging is on
for interface: Serial0 

To enable Token Ring debugging between two MAC address, 0000.3018.4acd and 0000.30e0.8250, configure an extended bridging access list 1106:

access-list 1106 permit 0000.3018.4acd 8000.0000.0000 0000.30e0.8250 8000.0000.0000
access-list 1106 permit 0000.30e0.8250 8000.0000.0000 0000.3018.4acd 8000.0000.0000

Invoke the following debug commands:

Router# debug list 1106
Router# debug token ring
Token Ring Interface debugging is on
for access list: 1106 

To enable RIF debugging for a single MAC address, configure an access list 1109:

access-list 1109 permit permit 0000.0000.0000 ffff.ffff.ffff 4000.2222.22c6 
0000.0000.0000

Invoke the following debug commands:

Router# debug list 1109
Router# debug rif
RIF update debugging is on
for access list: 1109

Related Commands

debug llc2 errors
debug llc2 packet
debug llc2 state
debug rif
debug sdlc
debug token ring

debug llc2 dynwind

Use the debug llc2 dynwind EXEC command to display changes to the dynamic window over Frame Relay. The no form of this command disables debugging output.

[no] debug llc2 dynwind

Sample Display

The following is sample output from the debug llc2 dynwind command:

Router# debug llc2 dynwind
LLC2/DW: BECN received! event REC_I_CMD, Window size reduced to 4
LLC2/DW: 1 consecutive I-frame(s) received without BECN
LLC2/DW: 2 consecutive I-frame(s) received without BECN
LLC2/DW: 3 consecutive I-frame(s) received without BECN
LLC2/DW: 4 consecutive I-frame(s) received without BECN
LLC2/DW: 5 consecutive I-frame(s) received without BECN
LLC2/DW: Current working window size is 5

In this example, the router receives a backward explicit congestion notification (BECN) and reduces the window size to four. After receiving five consecutive I-frames without a BECN, the router increases the window size to five.

Related Commands

debug llc2 errors
debug llc2 packet
debug llc2 state

debug llc2 errors

Use the debug llc2 errors EXEC command to display Logical Link Control, type 2 (LLC2) protocol error conditions or unexpected input. The no form of this command disables debugging output.

[no] debug llc2 errors

Sample Display

The following is sample output from the debug llc2 errors command from a router ignoring an incorrectly configured device:

Router# debug llc2 errors
LLC: admstate: 4000.1014.0001 0000.0000.0000 04 04 REC_RR_RSP
LLC: admstate: 4000.1014.0001 0000.0000.0000 04 04 REC_RR_RSP
LLC: admstate: 4000.1014.0001 0000.0000.0000 04 04 REC_RR_RSP
LLC: admstate: 4000.1014.0001 0000.0000.0000 04 04 REC_RR_RSP
LLC: admstate: 4000.1014.0001 0000.0000.0000 04 04 REC_RR_RSP
LLC: admstate: 4000.1014.0001 0000.0000.0000 04 04 REC_RR_RSP

Each line of output contains the remote MAC address, the local MAC address, the remote service access point (SAP), and the local SAP. In this example, the router receives unsolicited RR frames marked as responses.

Related Commands

debug list
debug llc2 dynwind
debug llc2 packet
debug llc2 state

debug llc2 packet

Use the debug llc2 packet EXEC command to display all input and output from the Logical Link Control, type 2 (LLC2) protocol stack. This command also displays information about some error conditions as well as internal interactions between the Common Link Services (CLS) layer and the LLC2 layer. The no form of this command disables debugging output.

[no] debug llc2 packet

Sample Display

The following is sample output from the debug llc2 packet command from the router sending ping data back and forth to another router:

Router# debug llc2 packet
LLC: llc2_input
401E54F0:                            10400000              .@..
401E5500: 303A90CF 0006F4E1 2A200404 012B5E    0:.O..ta* ...+
LLC: i REC_RR_CMD N(R)=21 p/f=1
LLC: 0006.f4e1.2a20 0000.303a.90cf 04 04 NORMAL REC_RR_CMD (3) 
LLC (rs): 0006.f4e1.2a20 0000.303a.90cf 04 04 REC_RR_CMD N(R)=42
LLC: 0006.f4e1.2a20 0000.303a.90cf 04 04 txmt RR_RSP N(R)=20 p/f=1
LLC: llc_sendframe
401E5610:              0040 0006F4E1 2A200000        .@..ta* ..
401E5620: 303A90CF 04050129 00               N  0:.O...).       2012
LLC: llc_sendframe
4022E3A0:                       0040 0006F4E1            .@..ta
4022E3B0: 2A200000 303A90CF 04042A28 2C000202  * ..0:.O..*(,...
4022E3C0: 00050B90 A02E0502 FF0003D1 004006C1  .... ......Q.@.A
4022E3D0: D7C9D5C    0.128
 C400130A C1D7D7D5 4BD5F2F0  WIUGD...AWWUKUrp
4022E3E0: F1F30000 011A6071 00010860 D7027000  qs....\Qq...\QW.p.
4022E3F0: 00003B00 1112FF01 03000243 6973636F  ..;........Cisco
4022E400: 20494F53 69                           IOSi           
LLC: 0006.f4e1.2a20 0000.303a.90cf 04 04 txmt I N(S)=21 N(R)=20 p/f=0 size=90
LLC: llc2_input
401E5620:                   10400000 303A90CF          .@..0:.O
401E5630: 0006F4E1 2A200404 282C2C00 02020004  ..ta* ..(,,.....
401E5640: 03902000 1112FF01 03000243 6973636F  .. ........Cisco
401E5650: 20494F53 A0                           IOS            
LLC: i REC_I_CMD N(R)=22 N(S)=20 V(R)=20 p/f=0
LLC: 0006.f4e1.2a20 0000.303a.90cf 04 04 NORMAL REC_I_CMD (1) 
LLC (rs): 0006.f4e1.2a20 0000.303a.90cf 04 04 REC_I_CMD N(S)=20 V(R)=20
LLC (rs): 0006.f4e1.2a20 0000.303a.90cf 04 04 REC_I_CMD N(R)=44
LLC: INFO: 0006.f4e1.2a20 0000.303a.90cf 04 04 v(r) 20

The first three lines indicate that the router has received some input from the link:

LLC: llc2_input
401E54F0:                            10400000              .@..
401E5500: 303A90CF 0006F4E1 2A200404 012B5E    0:.O..ta* ...+

The next line indicates that this input was an RR command with the poll bit set. The other router has received sequence number 21 and is waiting for the final bit.

LLC: i REC_RR_CMD N(R)=21 p/f=1

The next two lines contain the MAC addresses of the sender and receiver as well as the state of the router when it received this frame.

LLC: 0006.f4e1.2a20 0000.303a.90cf 04 04 NORMAL REC_RR_CMD (3) 
LLC (rs): 0006.f4e1.2a20 0000.303a.90cf 04 04 REC_RR_CMD N(R)=42

The next four lines indicate that the router is transmitting a response with the final bit set.

LLC: 0006.f4e1.2a20 0000.303a.90cf 04 04 txmt RR_RSP N(R)=20 p/f=1
LLC: llc_sendframe
401E5610:              0040 0006F4E1 2A200000        .@..ta* ..
401E5620: 303A90CF 04050129 00               N  0:.O...).       2012

Related Commands

debug list
debug llc2 dynwind
debug llc2 errors
debug llc2 state

debug llc2 state

Use the debug llc2 state EXEC command to display state transitions of the Logical Link Control, type 2 (LLC2) protocol. The no form of this command disables debugging output.

[no] debug llc2 state

Usage Guidelines

Refer to the ISO/IEC standard 8802-2 for definitions and explanations of debug llc2 state output.

Sample Display

The following is sample output from the debug llc2 state command when a router disables and enables an interface:

Router# debug llc2 state
LLC (stsw): 0006.f4e1.2a20 0000.303a.90cf 04 04, NORMAL -> AWAIT (P_TIMER_EXP)
LLC(rs): 0006.f4e1.2a20 0000.303a.90cf 04 04, AWAIT -> D_CONN (P_TIMER_EXP)
LLC: cleanup 0006.f4e1.2a20 0000.303a.90cf 04 04, UNKNOWN (17)
LLC (stsw): 0006.f4e1.2a20 0000.303a.90cf 04 04, ADM -> SETUP (CONN_REQ)
LLC: normalstate: set_local_busy 0006.f4e1.2a20 0000.303a.90cf 04 04
LLC (stsw): 0006.f4e1.2a20 0000.303a.90cf 04 04, NORMAL -> BUSY (SET_LOCAL_BUSY)
LLC: Connection established: 0006.f4e1.2a20 0000.303a.90cf 04 04, success
LLC (stsw): 0006.f4e1.2a20 0000.303a.90cf 04 04, SETUP -> BUSY (SET_LOCAL_BUSY)
LLC: busystate: 0006.f4e1.2a20 0000.303a.90cf 04 04 local busy cleared
LLC (stsw): 0006.f4e1.2a20 0000.303a.90cf 04 04, BUSY -> NORMAL (CLEAR_LOCAL_BUSY)

Related Commands

debug list
debug llc2 dynwind
debug llc2 errors
debug llc2 packet

debug lnm events

Use the debug lnm events EXEC command to display any unusual events that occur on a Token Ring network. These events include stations reporting errors or error thresholds being exceeded. The no form of this command disables debugging output.

[no] debug lnm events

Sample Display

The following is sample output from the debug lnm events command:

Router# debug lnm events
IBMNM3: Adding 0000.3001.1166 to error list
IBMNM3: Station 0000.3001.1166 going into preweight condition
IBMNM3: Station 0000.3001.1166 going into weight condition
IBMNM3: Removing 0000.3001.1166 from error list
LANMGR0: Beaconing is present on the ring
LANMGR0: Ring is no longer beaconing
IBMNM3: Beaconing, Postmortem Started
IBMNM3: Beaconing, heard from 0000.3000.1234
IBMNM3: Beaconing, Postmortem Next Stage
IBMNM3: Beaconing, Postmortem Finished

The following message indicates that station 0000.3001.1166 reported errors and has been added to the list of stations reporting errors. This station is located on Ring 3.

IBMNM3: Adding 0000.3001.1166 to error list

The following message indicates that station 0000.3001.1166 has passed the "early warning" threshold for error counts:

IBMNM3: Station 0000.3001.1166 going into preweight condition

The following message indicates that station 0000.3001.1166 is experiencing a severe number of errors:

IBMNM3: Station 0000.3001.1166 going into weight condition

The following message indicates that the error counts for station 0000.3001.1166 have all decayed to zero, so this station is being removed from the list of stations that have reported errors:

IBMNM3: Removing 0000.3001.1166 from error list

The following message indicates that Ring 0 has entered failure mode. This ring number is assigned internally.

LANMGR0: Beaconing is present on the ring

The following message indicates that Ring 0 is no longer in failure mode. This ring number is assigned internally.

LANMGR0: Ring is no longer beaconing

The following message indicates that the router is beginning its attempt to determine whether any stations left the ring during the automatic recovery process for the last beaconing failure. The router attempts to contact stations that were part of the fault domain to detect whether they are still operating on the ring.

IBMNM3: Beaconing, Postmortem Started

The following message indicates that the router is attempting to determine whether or not any stations left the ring during the automatic recovery process for the last beaconing failure. It received a response from station 0000.3000.1234, one of the two stations in the fault domain.

IBMNM3: Beaconing, heard from 0000.3000.1234

The following message indicates that the router is attempting to determine whether any stations left the ring during the automatic recovery process for the last beaconing failure. It is initiating another attempt to contact the two stations in the fault domain.

IBMNM3: Beaconing, Postmortem Next Stage

The following message indicates that the router has attempted to determine whether any stations left the ring during the automatic recovery process for the last beaconing failure. It has successfully heard back from both stations that were part of the fault domain.

IBMNM3: Beaconing, Postmortem Finished

Explanations follow for other messages that the debug lnm events command can generate.

The following message indicates that the router is out of memory:

LANMGR: memory request failed, find_or_build_station()

The following message indicates that Ring 3 is experiencing a large number of errors that cannot be attributed to any individual station:

IBMNM3: Non-isolating error threshold exceeded

The following message indicates that a station (or stations) on Ring 3 are receiving frames faster than they can be processed:

IBMNM3: Adapters experiencing congestion

The following message indicates that the beaconing has lasted for over 1 minute and is considered a "permanent" error:

IBMNM3: Beaconing, permanent

The following message indicates that the beaconing lasted for less than 1 minute. The router is attempting to determine whether either station in the fault domain left the ring.

IBMNM: Beaconing, Destination Started

In the preceding line of output, the following can replace "Started": "Next State", "Finished", "Timed out", and "Cannot find station n".

debug lnm llc

Use the debug lnm llc EXEC command to display all communication between the router/bridge and the LAN Network Managers (LNMs) that have connections to it. The no form of this command disables debugging output.

[no] debug lnm llc

Usage Guidelines

One line is displayed for each message sent or received.

Sample Display

The following is sample output from the debug lnm llc command:

Router# debug lnm llc
IBMNM: Received LRM Set Reporting Point frame from 1000.5ade.0d8a.
IBMNM: found bridge: 001-2-00A, addresses: 0000.3040.a630 4000.3040.a630
IBMNM: Opening connection to 1000.5ade.0d8a on TokenRing0
IBMNM: Sending LRM LAN Manager Accepted to 1000.5ade.0d8a on link 0.
IBMNM: sending LRM New Reporting Link Established to 1000.5a79.dbf8 on link 1.
IBMNM: Determining new controlling LNM
IBMNM: Sending Report LAN Manager Control Shift to 1000.5ade.0d8a on link 0.
IBMNM: Sending Report LAN Manager Control Shift to 1000.5a79.dbf8 on link 1.
IBMNM: Bridge 001-2-00A received Request Bridge Status from 1000.5ade.0d8a.
IBMNM: Sending Report Bridge Status to 1000.5ade.0d8a on link 0.
IBMNM: Bridge 001-2-00A received Request REM Status from 1000.5ade.0d8a.
IBMNM: Sending Report REM Status to 1000.5ade.0d8a on link 0.
IBMNM: Bridge 001-2-00A received Set Bridge Parameters from 1000.5ade.0d8a.
IBMNM: Sending Bridge Parameters Set to 1000.5ade.0d8a on link 0.
IBMNM: sending Bridge Params Changed Notification to 1000.5a79.dbf8 on link 1.
IBMNM: Bridge 001-2-00A received Set REM Parameters from 1000.5ade.0d8a.
IBMNM: Sending REM Parameters Set to 1000.5ade.0d8a on link 0.
IBMNM: sending REM Parameters Changed Notification to 1000.5a79.dbf8 on link 1.
IBMNM: Bridge 001-2-00A received Set REM Parameters from 1000.5ade.0d8a.
IBMNM: Sending REM Parameters Set to 1000.5ade.0d8a on link 0.
IBMNM: sending REM Parameters Changed Notification to 1000.5a79.dbf8 on link 1.
IBMNM: Received LRM Set Reporting Point frame from 1000.5ade.0d8a.
IBMNM: found bridge: 001-1-00A, addresses: 0000.3080.2d79 4000.3080.2d7

As the above indicates, debug lnm llc output can vary somewhat in format. Table 88 describes significant fields shown in the first line of output.


Table 88: Debug LNM LLC Field Descriptions
Field Description

IBMNM:

This line of output displays LLC-level debugging information.

Received

The router received a frame. The other possible value is Sending, to indicate that the router is sending a frame.

LRM

The function of the LLC-level software that is communicating:

  • CRS---Configuration Report Server

  • LBS---LAN Bridge Server

  • LRM---LAN Reporting Manager

  • REM---Ring Error Monitor

  • RPS---Ring Parameter Server

  • RS---Ring Station

Set Reporting Point

Name of the specific frame that the router sent or received. Possible values include the following:

  • Bridge Counter Report

  • Bridge Parameters Changed Notification

  • Bridge Parameters Set

  • CRS Remove Ring Station

  • CRS Report NAUN Change

  • CRS Report Station Information

  • CRS Request Station Information

  • CRS Ring Station Removed

  • LRM LAN Manager Accepted

  • LRM Set Reporting Point

  • New Reporting Link Established

  • REM Forward MAC Frame

  • REM Parameters Changed Notification

  • REM Parameters Set

  • Report Bridge Status

  • Report LAN Manager Control Shift

  • Report REM Status

  • Request Bridge Status

  • Request REM Status

  • Set Bridge Parameters

  • Set REM Parameters

from 1000.5ade.0d8a

If the router has received the frame, this address is the source address of the frame. If the router is sending the frame, this address is the destination address of the frame.

The following message indicates that the lookup for the bridge with which the LAN Manager was requesting to communicate was successful:

IBMNM: found bridge: 001-2-00A, addresses: 0000.3040.a630 4000.3040.a630

The following message indicates the connection is being opened:

IBMNM: Opening connection to 1000.5ade.0d8a on TokenRing0

The following message indicates that a LAN Manager has connected or disconnected from an internal bridge and that the router computes which LAN Manager is allowed to change parameters:

IBMNM: Determining new controlling LNM

The following line of output indicates which bridge in the router is the destination for the frame:

IBMNM: Bridge 001-2-00A received Request Bridge Status from 1000.5ade.0d8a.

debug lnm mac

Use the debug lnm mac EXEC command to display all management communication between the router/bridge and all stations on the local Token Rings. The no form of this command disables debugging output.

[no] debug lnm mac

Usage Guidelines

One line is displayed for each message sent or received.

Sample Display

The following is sample output from the debug lnm mac command:

Router# debug lnm mac
LANMGR0: RS received request address from 4000.3040.a670.
LANMGR0: RS sending report address to 4000.3040.a670.
LANMGR0: RS received request state from 4000.3040.a670.
LANMGR0: RS sending report state to 4000.3040.a670.
LANMGR0: RS received request attachments from 4000.3040.a670.
LANMGR0: RS sending report attachments to 4000.3040.a670.
LANMGR2: RS received ring purge from 0000.3040.a630.
LANMGR2: CRS received report NAUN change from 0000.3040.a630.
LANMGR2: RS start watching ring poll.
LANMGR0: CRS received report NAUN change from 0000.3040.a630.
LANMGR0: RS start watching ring poll.
LANMGR2: REM received report soft error from 0000.3040.a630.
LANMGR0: REM received report soft error from 0000.3040.a630.
LANMGR2: RS received ring purge from 0000.3040.a630.
LANMGR2: RS received AMP from 0000.3040.a630.
LANMGR2: RS received SMP from 0000.3080.2d79.
LANMGR2: CRS received report NAUN change from 1000.5ade.0d8a.
LANMGR2: RS start watching ring poll.
LANMGR0: RS received ring purge from 0000.3040.a630.
LANMGR0: RS received AMP from 0000.3040.a630.
LANMGR0: RS received SMP from 0000.3080.2d79.
LANMGR0: CRS received report NAUN change from 1000.5ade.0d8a.
LANMGR0: RS start watching ring poll.
LANMGR2: RS received SMP from 1000.5ade.0d8a.
LANMGR2: RPS received request initialization from 1000.5ade.0d8a.
LANMGR2: RPS sending initialize station to 1000.5ade.0d8a.

Table 89 describes significant fields shown in the first line of output.


Table 89: Debug LNM MAC Field Descriptions
Field Description

LANMGR0:

LANMGR indicates that this line of output displays MAC-level debugging information. 0 indicates the number of the Token Ring interface associated with this line of debugging output.

RS

Indicates which function of the MAC-level software is communicating:

  • CRS---Configuration Report Server

  • REM---Ring Error Monitor

  • RPS---Ring Parameter Server

  • RS---Ring Station

received

Indicates that the router received a frame. The other possible value is "sending", to indicate that the router is sending a frame.

request address

Indicates the name of the specific frame that the router sent or received. Possible values include the following:

  • AMP

  • initialize station

  • report address

  • report attachments

  • report nearest active upstream neighbor (NAUN) change

  • report soft error

  • report state

  • request address

  • request attachments

  • request initialization

  • request state

  • ring purge

  • SMP

from 4000.3040.a670

Indicates the source address of the frame, if the router has received the frame. If the router is sending the frame, this address is the destination address of the frame.

As the above indicates, all debug lnm mac messages follow the format described in Table 89 except the following:

LANMGR2: RS start watching ring poll
LANMGR2: RS stop watching ring poll

These messages indicate that the router starts and stops receiving AMP and SMP frames. These frames are used to build a current picture of which stations are on the ring.

debug local-ack state

Use the debug local-ack state EXEC command to display the new and the old state conditions whenever there is a state change in the local acknowledgment state machine. The no form of this command disables debugging output.

[no] debug local-ack state

Sample Display

The following is sample output from the debug local-ack state command:

Router# debug local-ack state
LACK_STATE: 2370300, hashp 2AE628, old state = disconn, new state = awaiting 
LLC2 open to finish
LACK_STATE: 2370304, hashp 2AE628, old state = awaiting LLC2 open to finish, 
new state = connected
LACK_STATE: 2373816, hashp 2AE628, old state = connected, new state = disconnected
LACK_STATE: 2489548, hashp 2AE628, old state = disconn, new state = awaiting 
LLC2 open to finish
LACK_STATE: 2489548, hashp 2AE628, old state = awaiting LLC2 open to finish, 
new state = connected
LACK_STATE: 2490132, hashp 2AE628, old state = connected, new state = awaiting 
linkdown response
LACK_STATE: 2490140, hashp 2AE628, old state = awaiting linkdown response, 
new state = disconnected
LACK_STATE: 2497640, hashp 2AE628, old state = disconn, new state = awaiting 
LLC2 open to finish
LACK_STATE: 2497644, hashp 2AE628, old state = awaiting LLC2 open to finish, 
new state = connected

Table 90 describes significant fields.


Table 90: Debug Local-Ack State Field Descriptions
Field Description

LACK_STATE:

Indication that this packet describes a state change in the local acknowledgment state machine.

2370300

System clock.

hashp 2AE628

Internal control block pointer used by technical support staff for debugging purposes.

old state = disconn

The old state condition in the local acknowledgment state machine. Possible values include the following:

  • Disconn (disconnected)

  • awaiting LLC2 open to finish

  • connected

  • awaiting linkdown response

new state = awaiting LLC2 open to finish

The new state condition in the local acknowledgment state machine. Possible values include the following:

  • Disconn (disconnected)

  • awaiting LLC2 open to finish

  • connected

  • awaiting linkdown response


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