debug platform matm {aging | all | ec-aging | errors | learning | rpc | secure-address | warnings}

no debug platform matm {aging | all | ec-aging | errors | learning | rpc | secure-address | warnings}

Syntax Description

aging

Display MAC address aging debug messages.

all

Display all platform MAC address management event debug messages.

ec-aging

Display EtherChannel address aging-related debug messages.

errors

Display MAC address management error messages.

learning

Display MAC address management address-learning debug messages.

rpc

Display MAC address management remote procedure call (RPC) related debug messages.

secure-address

Display MAC address management secure address learning debug messages.

warning

Display MAC address management warning messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform matm command is the same as the no debug platform matm command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

debug matm

Displays information about platform-independent MAC address management.

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform messaging application

Use the debug platform messaging application privileged EXEC command to enable debugging of application messaging activity. Use the no form of this command to disable debugging.

debug platform messaging application {all | badpak | cleanup | events | memerr | messages | stackchg | usererr}

no debug platform messaging application {all | badpak | cleanup | events | memerr | messages | stackchg | usererr}

Syntax Description

all

Display all application-messaging debug messages.

badpak

Display bad-packet debug messages.

cleanup

Display clean-up debug messages.

events

Display event debug messages.

memerr

Display memory-error debug messages.

messages

Display application-messaging debug messages.

stackchg

Display stack-change debug messages.

This keyword is supported only on Catalyst 3750-E switches.

usererr

Display user-error debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform messaging application command is the same as the no debug platform messaging application command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform phy

Use the debug platform phy privileged EXEC command to enable debugging of PHY driver information. Use the no form of this command to disable debugging.

debug platform phy {automdix | cablediag | dual-purpose | flcd {configure | ipc | iter | trace} | flowcontrol | forced | init-seq | link-status | read | sfp | show-controller | speed | write | xenpak}

no debug platform phy {automdix | cablediag | dual-purpose | flcd {configure | ipc | iter | trace} | flowcontrol | forced | init-seq | link-status | read | sfp | show-controller | speed | write | xenpak}

Syntax Description

automdix

Display PHY automatic medium-dependent interface crossover (auto-MDIX) debug messages.

cablediag

Display PHY cable-diagnostic debug messages.

dual-purpose

Display PHY dual-purpose event debug messages.

flcd {configure | ipc | iter | trace}

Display PHY FLCD debug messages. The keywords have these meanings:

configure—Display PHY configure debug messages.

ipc—Display Interprocess Communication Protocol (IPC) debug messages.

iter—Display iter debug messages.

trace—Display trace debug messages.

flowcontrol

Display PHY flowcontrol debug messages.

forced

Display PHY forced-mode debug messages.

init-seq

Display PHY initialization-sequence debug messages.

link-status

Display PHY link-status debug messages.

read

Display PHY-read debug messages.

sfp

Display PHY small form-factor pluggable (SFP) modules debug messages.

show-controller

Display PHY show-controller debug messages.

speed

Display PHY speed-change debug messages.

write

Display PHY-write debug messages.

xenpak

Display PHY XENPAK debug messages


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform phy command is the same as the no debug platform phy command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform pm

Use the debug platform pm privileged EXEC command to enable debugging of the platform-dependent port manager software module. Use the no form of this command to disable debugging.

debug platform pm {all | counters | errdisable | etherchnl | exceptions | hpm-events | idb-events | if-numbers | ios-events | link-status | platform | pm-events | pm-span | pm-vectors [detail] | rpc [general | oper-info | state | vectors | vp-events] | soutput-vectors | stack-manager | sync | vlans}

no debug platform pm {all | counters | errdisable | etherchnl | exceptions | hpm-events | idb-events | if-numbers | ios-events | link-status | platform | pm-events | pm-span | pm-vectors [detail] | rpc [general | oper-info | state | vectors | vp-events] | soutput-vectors | stack-manager | sync | vlans}

Syntax Description

all

Display all port-manager debug messages.

counters

Display counters for remote procedure call (RPC) debug messages.

errdisable

Display error-disabled related-events debug messages.

etherchnl

Display EtherChannel related-events debug messages.

exceptions

Display system exception debug messages.

hpm-events

Display platform port-manager event debug messages.

idb-events

Display interface descriptor block (IDB) related-events debug messages.

if-numbers

Display interface-number translation-event debug messages.

ios-events

Display Cisco IOS event debug messages.

link-status

Display interface link-detection event debug messages.

platform

Display port-manager function-event debug messages.

pm-events

Display port manager event debug messages.

pm-span

Display port manager Switched Port Analyzer (SPAN) event debug messages.

pm-vectors [detail]

Display port-manager vector-related-event debug messages. The keyword has this meaning:

detail—Display vector-function details.

rpc [general | oper-info | state | vectors | vp-events]

Display RPC related-event debug messages. The keywords have these meanings:

general—(Optional) Display RPC general events.

oper-info—(Optional) Display operational- and informational-related RPC messages.

state—(Optional) Display administrative- and operational-related RPC messages.

vectors—(Optional) Display vector-related RPC messages.

vp-events—(Optional) Display virtual ports related-events RP messages.

soutput-vectors

Display IDB output vector event debug messages.

stack-manager

Display stack-manager related-events debug messages.

This keyword is supported on Catalyst 3750-E switch.

sync

Display operational synchronization and VLAN line-state event debug messages.

vlans

Display VLAN creation and deletion event debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform pm command is the same as the no debug platform pm command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform port-asic

Use the debug platform port-asic privileged EXEC command to enable debugging of the port application-specific integrated circuit (ASIC) driver. Use the no form of this command to disable debugging.

debug platform port-asic {interrupt | periodic | read | stack | write}

no debug platform port-asic {interrupt | periodic | read | stack | write}

Syntax Description

interrupt

Display port-ASIC interrupt-related function debug messages.

periodic

Display port-ASIC periodic-function-call debug messages.

read

Display port-ASIC read debug messages.

stack

Display stacking-related function debug messages.

This keyword is supported only on Catalyst 3750-E switches.

write

Display port-ASIC write debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform port-asic command is the same as the no debug platform port-asic command.

On Catalyst 3750 switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform port-security

Use the debug platform port-security privileged EXEC command to enable debugging of platform-dependent port-security information. Use the no form of this command to disable debugging.

debug platform port-security {add | aging | all | delete | errors | rpc | warnings}

no debug platform port-security {add | aging | all | delete | errors | rpc | warnings}

Syntax Description

add

Display secure address addition debug messages.

aging

Display secure address aging debug messages.

all

Display all port-security debug messages.

delete

Display secure address deletion debug messages.

errors

Display port-security error debug messages.

rpc

Display remote procedure call (RPC) debug messages.

warnings

Display warning debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform port-security command is the same as the no debug platform port-security command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform qos-acl-tcam

Use the debug platform qos-acl-tcam privileged EXEC command to enable debugging of the quality of service (QoS) and access control list (ACL) hardware memory manager software. Use the no form of this command to disable debugging.

debug platform qos-acl-tcam {all | ctcam | errors | labels | mask | rpc | tcam}

no debug platform qos-acl-tcam {all | ctcam | errors | labels | mask | rpc | tcam}

Syntax Description

all

Display all QoS and ACL ternary content addressable memory (QATM) manager debug messages.

ctcam

Display Cisco TCAM (CTCAM) related-events debug messages.

errors

Display QATM error-related-events debug messages.

labels

Display QATM label-related-events debug messages.

mask

Display QATM mask-related-events debug messages.

rpc

Display QATM remote procedure call (RPC) related-events debug messages.

tcam

Display QATM hardware-memory-related events debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform qos-acl-tcam command is the same as the no debug platform qos-acl-tcam command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform remote-commands

Use the debug platform remote-commands privileged EXEC command to enable debugging of remote commands. Use the no form of this command to disable debugging.

debug platform remote-commands

no debug platform remote-commands

Syntax Description

This command has no arguments or keywords.

Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform remote-commands command is the same as the no debug platform remote-commands command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform resource-manager

Use the debug platform resource-manager privileged EXEC command to enable debugging of the resource manager software. Use the no form of this command to disable debugging.

debug platform resource-manager {all | dm | erd | errors | madmed | sd | stats | vld}

no debug platform resource-manager {all | dm | erd | errors | madmed | sd | stats | vld}

Syntax Description

all

Display all resource manager debug messages.

dm

Display destination-map debug messages.

erd

Display equal-cost-route descriptor-table debug messages.

errors

Display error debug messages.

madmed

Display the MAC address descriptor table and multi-expansion descriptor table debug messages.

sd

Display the station descriptor table debug messages.

stats

Display statistics debug messages.

vld

Display the VLAN-list descriptor debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform resource-manager command is the same as the no debug platform resource-manager command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform snmp

Use the debug platform snmp privileged EXEC command to enable debugging of the platform-dependent Simple Network Management Protocol (SNMP) software. Use the no form of this command to disable debugging.

debug platform snmp

no debug platform snmp

Syntax Description

This command has no arguments or keywords.

Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform snmp command is the same as the no debug platform snmp command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform span

Use the debug platform span privileged EXEC command to enable debugging of the platform-dependent Switched Port Analyzer (SPAN) software. Use the no form of this command to disable debugging.

debug platform span

no debug platform span

Syntax Description

This command has no arguments or keywords.

Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform span command is the same as the no debug platform span command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform stack-manager

Use the debug platform stack-manager privileged EXEC command to enable debugging of the stack manager software. Use the no form of this command to disable debugging.

debug platform stack-manager {all | rpc | sdp | sim | ssm | trace}

no debug platform stack-manager {all | rpc | sdp | sim | ssm | trace}


Note This command is supported only on Catalyst 3750-E switches.


Syntax Description

all

Display all stack manager debug messages.

rpc

Display stack manager remote procedure call (RPC) usage debug messages.

sdp

Display the Stack Discovery Protocol (SDP) debug messages.

sim

Display the stack information module debug messages.

ssm

Display the stack state-machine debug messages.

trace

Trace the stack manager entry and exit debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform stack-manager command is the same as the no debug platform stack-manager command.

When you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform supervisor-asic

Use the debug platform supervisor-asic privileged EXEC command to enable debugging of the supervisor application-specific integrated circuit (ASIC). Use the no form of this command to disable debugging.

debug platform supervisor-asic {all | errors | receive | send}

no debug platform supervisor-asic {all | errors | receive | send}

Syntax Description

all

Display all supervisor-ASIC event debug messages.

errors

Display the supervisor-ASIC error debug messages.

receive

Display the supervisor-ASIC receive debug messages.

send

Display the supervisor-ASIC send debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform supervisor-asic command is the same as the no debug platform supervisor-asic command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform sw-bridge

Use the debug platform sw-bridge privileged EXEC command to enable debugging of the software bridging function. Use the no form of this command to disable debugging.

debug platform sw-bridge {broadcast | control | multicast | packet | unicast}

no debug platform sw-bridge {broadcast | control | multicast | packet | unicast}

Syntax Description

broadcast

Display broadcast-data debug messages.

control

Display protocol-packet debug messages.

multicast

Display multicast-data debug messages.

packet

Display sent and received data debug messages.

unicast

Display unicast-data debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform sw-bridge command is the same as the no debug platform sw-bridge command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform tcam

Use the debug platform tcam privileged EXEC command to enable debugging of hardware memory access and lookups. Use the no form of this command to disable debugging.

debug platform tcam {log | read | search | write}

debug platform tcam log l2 {acl {input | output} | local | qos}

debug platform tcam log l3 {acl {input | output} | ipv6 {acl {input | output} | local | qos | secondary} | local | qos | secondary}

debug platform tcam read {reg | ssram | tcam}

debug platform tcam search

debug platform tcam write {forw-ram | reg | tcam}

no debug platform tcam {log | read | search | write}

no debug platform tcam log l2 {acl {input | output} | local | qos}

no debug platform tcam log l3 {acl {input | output} | ipv6 {acl {input | output} | local | qos | secondary} | local | qos | secondary}

no debug platform tcam read {reg | ssram | tcam}

no debug platform tcam search

no debug platform tcam write {forw-ram | reg | tcam}

Syntax Description

log l2 {acl {input | output} | local | qos}

Display Layer 2 field-based CAM look-up type debug messages. The keywords have these meanings:

acl {input | output}—Display input or output ACL look-up debug messages.

local—Display local forwarding look-up debug messages.

qos—Display classification and quality of service (QoS) look-up debug messages.

l3 {acl {input | output} | ipv6 {acl {input | output} | local | qos | secondary} | local | qos | secondary}

Display Layer 3 field-based CAM look-up type debug messages. The keywords have these meanings:

acl {input | output}—Display input or output ACL look-up debug messages.

ipv6 {acl {input | output} | local | qos | secondary}—Display IPv6-based look-up debug messages. Options include displaying input or output ACL look-up, local forwarding look-up, classification and QoS look-up, or secondary forwarding look-up debug messages.

local—Display local forwarding look-up debug messages.

qos—Display classification and quality of service (QoS) look-up debug messages.

secondary—Display secondary forwarding look-up debug messages.

read {reg | ssram | tcam}

Display hardware-memory-read debug messages. The keywords have these meanings:

reg—Display hardware-memory-register read debug messages.

ssramDisplay synchronous static RAM (SSRAM)-read debug messages.

tcam—Display hardware-memory-read debug messages.

search

Display supervisor-initiated hardware-memory-search results debug messages.

write {forw-ram | reg | tcam}

Display hardware-memory-write debug messages. The keywords have these meanings:

forw-ram—Display forwarding-RAM write debug messages.

reg—Display hardware-memory-register write debug messages.

tcam—Display hardware-memory-write debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform tcam command is the same as the no debug platform tcam command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform udld

Use the debug platform udld privileged EXEC command to enable debugging of the platform-dependent UniDirectional Link Detection (UDLD) software. Use the no form of this command to disable debugging.

debug platform udld [all | error | rpc {events | messages}]

no debug platform udld [all | error | rpc {events | messages}]

Syntax Description

all

(Optional) Display all UDLD debug messages.

error

(Optional) Display error condition debug messages.

rpc {events | messages}

(Optional) Display UDLD remote procedure call (RPC) debug messages. The keywords have these meanings:

events—Display UDLD RPC events.

messages—Display UDLD RPC messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform udld command is the same as the no debug platform udld command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug platform vlan

Use the debug platform vlan privileged EXEC command to enable debugging of the VLAN manager software. Use the no form of this command to disable debugging.

debug platform vlan {errors | mvid | rpc}

no debug platform vlan {errors | mvid | rpc}

Syntax Description

errors

Display VLAN error debug messages.

mvid

Display mapped VLAN ID allocations and free debug messages.

rpc

Display remote procedure call (RPC) debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug platform vlan command is the same as the no debug platform vlan command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug pm

Use the debug pm privileged EXEC command to enable debugging of port manager (PM) activity. The port manager is a state machine that controls all the logical and physical interfaces. All features, such as VLANs, UniDirectional Link Detection (UDLD), and so forth, work with the port manager to provide switch functions. Use the no form of this command to disable debugging.

debug pm {all | assert | card | etherchnl | hatable | messages | port | redundancy | registry | sm | span | split | vlan | vp}

no debug pm {all | assert | card | etherchnl | hatable | messages | port | redundancy | registry | sm | span | split | vlan | vp}

Syntax Description

all

Display all PM debug messages.

assert

Display assert debug messages.

card

Display line-card related-events debug messages.

etherchnl

Display EtherChannel related-events debug messages.

hatable

Display Host Access Table events debug messages.

messages

Display PM debug messages.

port

Display port related-events debug messages.

redundancy

Display redundancy debug messages.

registry

Display PM registry invocation debug messages.

sm

Display state-machine related-events debug messages.

span

Display spanning-tree related-events debug messages.

split

Display split-processor debug messages.

vlan

Display VLAN related-events debug messages.

vp

Display virtual port related-events debug messages.



Note Though visible in the command-line help strings, the scp and pvlan keywords are not supported.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug pm command is the same as the no debug pm command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug port-security

Use the debug port-security privileged EXEC command to enable debugging of the allocation and states of the port security subsystem. Use the no form of this command to disable debugging.

debug port-security

no debug port-security

Syntax Description

This command has no arguments or keywords.

Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug port-security command is the same as the no debug port-security command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show port-security

Displays port-security settings for an interface or for the switch.


debug qos-manager

Use the debug qos-manager privileged EXEC command to enable debugging of the quality of service (QoS) manager software. Use the no form of this command to disable debugging.

debug qos-manager {all | event | verbose}

no debug qos-manager {all | event | verbose}

Syntax Description

all

Display all QoS-manager debug messages.

event

Display QoS-manager related-event debug messages.

verbose

Display QoS-manager detailed debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug qos-manager command is the same as the no debug qos-manager command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, see the Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.


debug spanning-tree

Use the debug spanning-tree privileged EXEC command to enable debugging of spanning-tree activities. Use the no form of this command to disable debugging.

debug spanning-tree {all | backbonefast | bpdu | bpdu-opt | config | csuf/csrt | etherchannel | events | exceptions | general | mstp | pvst+ | root | snmp | switch | synchronization | uplinkfast}

no debug spanning-tree {all | backbonefast | bpdu | bpdu-opt | config | csuf/csrt | etherchannel | events | exceptions | general | mstp | pvst+ | root | snmp | switch | synchronization | uplinkfast}

Syntax Description

all

Display all spanning-tree debug messages.

backbonefast

Display BackboneFast-event debug messages.

bpdu

Display spanning-tree bridge protocol data unit (BPDU) debug messages.

bpdu-opt

Display optimized BPDU handling debug messages.

config

Display spanning-tree configuration change debug messages.

csuf/csrt

Display cross-stack UplinkFast and cross-stack rapid transition activity debug messages.

This keyword is available only on Catalyst 3750-E switches.

etherchannel

Display EtherChannel-support debug messages.

events

Display spanning-tree topology event debug messages.

exceptions

Display spanning-tree exception debug messages.

general

Display general spanning-tree activity debug messages.

mstp

Debug Multiple Spanning Tree Protocol events.

pvst+

Display per-VLAN spanning-tree plus (PVST+) event debug messages.

root

Display spanning-tree root-event debug messages.

snmp

Display spanning-tree Simple Network Management Protocol (SNMP) handling debug messages.

synchronization

Display the spanning-tree synchronization event debug messages.

switch

Display switch shim command debug messages. This shim is the software module that is the interface between the generic Spanning Tree Protocol (STP) code and the platform-specific code of various switch platforms.

uplinkfast

Display UplinkFast-event debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug spanning-tree command is the same as the no debug spanning-tree command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show spanning-tree

Displays spanning-tree state information.



debug spanning-tree backbonefast

Use the debug spanning-tree backbonefast privileged EXEC command to enable debugging of spanning-tree BackboneFast events. Use the no form of this command to disable debugging.

debug spanning-tree backbonefast [detail | exceptions]

no debug spanning-tree backbonefast [detail | exceptions]

Syntax Description

detail

(Optional) Display detailed BackboneFast debug messages.

exceptions

(Optional) Display spanning-tree BackboneFast-exception debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug spanning-tree backbonefast command is the same as the no debug spanning-tree backbonefast command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show spanning-tree

Displays spanning-tree state information.


debug spanning-tree bpdu

Use the debug spanning-tree bpdu privileged EXEC command to enable debugging of sent and received spanning-tree bridge protocol data units (BPDUs). Use the no form of this command to disable debugging.

debug spanning-tree bpdu [receive | transmit]

no debug spanning-tree bpdu [receive | transmit]

Syntax Description

receive

(Optional) Display the nonoptimized path for received BPDU debug messages.

transmit

(Optional) Display the nonoptimized path for sent BPDU debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug spanning-tree bpdu command is the same as the no debug spanning-tree bpdu command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show spanning-tree

Displays spanning-tree state information.



debug spanning-tree bpdu-opt

Use the debug spanning-tree bpdu-opt privileged EXEC command to enable debugging of optimized spanning-tree bridge protocol data units (BPDUs) handling. Use the no form of this command to disable debugging.

debug spanning-tree bpdu-opt [detail | packet]

no debug spanning-tree bpdu-opt [detail | packet]

Syntax Description

detail

(Optional) Display detailed optimized BPDU-handling debug messages.

packet

(Optional) Display packet-level optimized BPDU-handling debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug spanning-tree bpdu-opt command is the same as the no debug spanning-tree bpdu-opt command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show spanning-tree

Displays spanning-tree state information.



debug spanning-tree mstp

Use the debug spanning-tree mstp privileged EXEC command to enable debugging of the Multiple Spanning Tree Protocol (MSTP) software. Use the no form of this command to disable debugging.

debug spanning-tree mstp {all | boundary | bpdu-rx | bpdu-tx | errors | flush | init | migration | pm | proposals | region | roles | sanity_check | sync | tc | timers}

no debug spanning-tree mstp {all | boundary | bpdu-rx | bpdu-tx | errors | flush | init | migration | pm | proposals | region | roles | sanity_check | sync | tc | timers}

Syntax Description

all

Enable all the debugging messages.

boundary

Debug flag changes at these boundaries:

•An multiple spanning-tree (MST) region and a single spanning-tree region running Rapid Spanning Tree Protocol (RSTP)

•An MST region and a single spanning-tree region running 802.1D

•An MST region and another MST region with a different configuration

bpdu-rx

Debug the received MST bridge protocol data units (BPDUs).

bpdu-tx

Debug the sent MST BPDUs.

errors

Debug MSTP errors.

flush

Debug the port flushing mechanism.

init

Debug the initialization of the MSTP data structures.

migration

Debug the protocol migration state machine.

pm

Debug MSTP port manager events.

proposals

Debug handshake messages between the designated switch and the root switch.

region

Debug the region synchronization between the switch processor (SP) and the route processor (RP).

roles

Debug MSTP roles.

sanity_check

Debug the received BPDU sanity check messages.

sync

Debug the port synchronization events.

tc

Debug topology change notification events.

timers

Debug the MSTP timers for start, stop, and expire events.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug spanning-tree mstp command is the same as the no debug spanning-tree mstp command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show spanning-tree

Displays spanning-tree state information.


debug spanning-tree switch

Use the debug spanning-tree switch privileged EXEC command to enable debugging of the software interface between the Spanning Tree Protocol (STP) software module and the port manager software module. Use the no form of this command to disable debugging.

debug spanning-tree switch {all | errors | flush | general | helper | pm | rx {decode | errors | interrupt | process} | state | tx [decode] | uplinkfast}

no debug spanning-tree switch {all | errors | flush | general | helper | pm | rx {decode | errors | interrupt | process} | state | tx [decode] | uplinkfast}

Syntax Description

all

Display all spanning-tree switch debug messages.

errors

Display debug messages for the interface between the spanning-tree software module and the port manager software module.

flush

Display debug messages for the shim flush operation.

general

Display general event debug messages.

helper

Display spanning-tree helper-task debug messages. Helper tasks handle bulk spanning-tree updates.

pm

Display port-manager event debug messages.

rx

Display received bridge protocol data unit (BPDU) handling debug messages. The keywords have these meanings:

decode—Display decoded received packets.

errors—Display receive error debug messages.

interrupt—Display interrupt service request (ISR) debug messages.

process—Display process receive BPDU debug messages.

state

Display spanning-tree port state change debug messages;

tx [decode]

Display sent BPDU handling debug messages. The keyword has this meaning:

decode—(Optional) Display decoded sent packets.

uplinkfast

Display uplinkfast packet transmission debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug spanning-tree switch command is the same as the no debug spanning-tree switch command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show spanning-tree

Displays spanning-tree state information.


debug spanning-tree uplinkfast

Use the debug spanning-tree uplinkfast privileged EXEC command to enable debugging of spanning-tree UplinkFast events. Use the no form of this command to disable debugging.

debug spanning-tree uplinkfast [exceptions]

no debug spanning-tree uplinkfast [exceptions]

Syntax Description

exceptions

(Optional) Display spanning-tree UplinkFast-exception debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug spanning-tree uplinkfast command is the same as the no debug spanning-tree uplinkfast command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show spanning-tree

Displays spanning-tree state information.



debug sw-vlan

Use the debug sw-vlan privileged EXEC command to enable debugging of VLAN manager activities. Use the no form of this command to disable debugging.

debug sw-vlan {badpmcookies | cfg-vlan {bootup | cli} | events | ifs | management | mapping | notification | packets | redundancy | registries | vtp}

no debug sw-vlan {badpmcookies | cfg-vlan {bootup | cli} | events | ifs | management | mapping | notification | packets | redundancy | registries | vtp}

Syntax Description

badpmcookies

Display debug messages for VLAN manager incidents of bad port manager cookies.

cfg-vlan {bootup | cli}

Display config-vlan debug messages. The keywords have these meanings:

bootup—Display messages when the switch is booting up.

cliDisplay messages when the command-line interface (CLI) is in config-vlan mode.

events

Display debug messages for VLAN manager events.

ifs

See the debug sw-vlan ifs command.

management

Display debug messages for VLAN manager management of internal VLANs.

mapping

Display debug messages for VLAN mapping.

notification

See the debug sw-vlan notification command.

packets

Display debug messages for packet handling and encapsulation processes.

redundancy

Display debug messages for VTP VLAN redundancy.

registries

Display debug messages for VLAN manager registries.

vtp

See the debug sw-vlan vtp command.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug sw-vlan command is the same as the no debug sw-vlan command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show vlan

Displays the parameters for all configured VLANs or one VLAN (if the VLAN name or ID is specified) in the administrative domain.

show vtp

Displays general information about VTP management domain, status, and counters.


debug sw-vlan ifs

Use the debug sw-vlan ifs privileged EXEC command to enable debugging of the VLAN manager IOS file system (IFS) error tests. Use the no form of this command to disable debugging.

debug sw-vlan ifs {open {read | write} | read {1 | 2 | 3 | 4} | write}

no debug sw-vlan ifs {open {read | write} | read {1 | 2 | 3 | 4} | write}

Syntax Description

open {read | write}

Display VLAN manager IFS file-open operation debug messages. The keywords have these meanings:

read—Display VLAN manager IFS file-read operation debug messages.

write—Display VLAN manager IFS file-write operation debug messages.

read {1 | 2 | 3 | 4}

Display file-read operation debug messages for the specified error test (1, 2, 3, or 4).

write

Display file-write operation debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug sw-vlan ifs command is the same as the no debug sw-vlan ifs command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

When selecting the file read operation, Operation 1 reads the file header, which contains the header verification word and the file version number. Operation 2 reads the main body of the file, which contains most of the domain and VLAN information. Operation 3 reads type length version (TLV) descriptor structures. Operation 4 reads TLV data.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show vlan

Displays the parameters for all configured VLANs or one VLAN (if the VLAN name or ID is specified) in the administrative domain.


debug sw-vlan notification

Use the debug sw-vlan notification privileged EXEC command to enable debugging of the activation and deactivation of Inter-Link Switch (ISL) VLAN IDs. Use the no form of this command to disable debugging.

debug sw-vlan notification {accfwdchange | allowedvlancfgchange | fwdchange | linkchange | modechange | pruningcfgchange | statechange}

no debug sw-vlan notification {accfwdchange | allowedvlancfgchange | fwdchange | linkchange | modechange | pruningcfgchange | statechange}

Syntax Description

accfwdchange

Display debug messages for VLAN manager notification of aggregated access interface spanning-tree forward changes.

allowedvlancfgchange

Display debug messages for VLAN manager notification of changes to the allowed VLAN configuration.

fwdchange

Display debug messages for VLAN manager notification of spanning-tree forwarding changes.

linkchange

Display debug messages for VLAN manager notification of interface link-state changes.

modechange

Display debug messages for VLAN manager notification of interface mode changes.

pruningcfgchange

Display debug messages for VLAN manager notification of changes to the pruning configuration.

statechange

Display debug messages for VLAN manager notification of interface state changes.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug sw-vlan notification command is the same as the no debug sw-vlan notification command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show vlan

Displays the parameters for all configured VLANs or one VLAN (if the VLAN name or ID is specified) in the administrative domain.


debug sw-vlan vtp

Use the debug sw-vlan vtp privileged EXEC command to enable debugging of the VLAN Trunking Protocol (VTP) code. Use the no form of this command to disable debugging.

debug sw-vlan vtp {events | packets | pruning [packets | xmit] | redundancy | xmit}

no debug sw-vlan vtp {events | packets | pruning | redundancy | xmit}

Syntax Description

events

Display debug messages for general-purpose logic flow and detailed VTP messages generated by the VTP_LOG_RUNTIME macro in the VTP code.

packets

Display debug messages for the contents of all incoming VTP packets that have been passed into the VTP code from the IOS VTP platform-dependent layer, except for pruning packets.

pruning [packets | xmit]

Display debug messages generated by the pruning segment of the VTP code. The keywords have these meanings:

packets—(Optional) Display debug messages for the contents of all incoming VTP pruning packets that have been passed into the VTP code from the IOS VTP platform-dependent layer.

xmit—(Optional) Display debug messages for the contents of all outgoing VTP packets that the VTP code requests the IOS VTP platform-dependent layer to send.

redundancy

Display debug messages for VTP redundancy.

xmit

Display debug messages for the contents of all outgoing VTP packets that the VTP code requests the IOS VTP platform-dependent layer to send, except for pruning packets.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug sw-vlan vtp command is the same as the no debug sw-vlan vtp command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

If no further parameters are entered after the pruning keyword, VTP pruning debugging messages appear. They are generated by the VTP_PRUNING_LOG_NOTICE, VTP_PRUNING_LOG_INFO, VTP_PRUNING_LOG_DEBUG, VTP_PRUNING_LOG_ALERT, and VTP_PRUNING_LOG_WARNING macros in the VTP pruning code.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show vtp

Displays general information about VTP management domain, status, and counters.


debug udld

Use the debug udld privileged EXEC command to enable debugging of the UniDirectional Link Detection (UDLD) feature. Use the no form of this command to disable UDLD debugging.

debug udld {events | packets | registries}

no debug udld {events | packets | registries}

Syntax Description

events

Display debug messages for UDLD process events as they occur.

packets

Display debug messages for the UDLD process as it receives packets from the packet queue and tries to send them at the request of the UDLD protocol code.

registries

Display debug messages for the UDLD process as it processes registry calls from the UDLD process-dependent module and other feature modules.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug udld command is the same as the no debug udld command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

For debug udld events, these debugging messages appear:

•General UDLD program logic flow

•State machine state changes

•Program actions for the set and clear ErrDisable state

•Neighbor cache additions and deletions

•Processing of configuration commands

•Processing of link-up and link-down indications

For debug udld packets, these debugging messages appear:

•General packet processing program flow on receipt of an incoming packet

•Indications of the contents of the various pieces of packets received (such as type length versions [TLVs]) as they are examined by the packet reception code

•Packet transmission attempts and the outcome

For debug udld registries, these categories of debugging messages appear:

•Sub-block creation

•Fiber-port status changes

•State change indications from the port manager software

•MAC address registry calls

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.

show udld

Displays UDLD administrative and operational status for all ports or the specified port.


debug vqpc

Use the debug vqpc privileged EXEC command to enable debugging of the VLAN Query Protocol (VQP) client. Use the no form of this command to disable debugging.

debug vqpc [all | cli | events | learn | packet]

no debug vqpc [all | cli | events | learn | packet]

Syntax Description

all

(Optional) Display all VQP client debug messages.

cli

(Optional) Display the VQP client command-line interface (CLI) debug messages.

events

(Optional) Display VQP client event debug messages.

learn

(Optional) Display VQP client address learning debug messages.

packet

(Optional) Display VQP client packet information debug messages.


Defaults

Debugging is disabled.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(35)SE2

This command was introduced.


Usage Guidelines

The undebug vqpc command is the same as the no debug vqpc command.

On a Catalyst 3750-E switch, when you enable debugging, it is enabled only on the stack master. To enable debugging on a stack member, you can start a session from the stack master by using the session switch-number privileged EXEC command. Then enter the debug command at the command-line prompt of the stack member. You also can use the remote command stack-member-number LINE privileged EXEC command on the stack master switch to enable debugging on a member switch without first starting a session.

Related Commands

Command
Description

show debugging

Displays information about the types of debugging that are enabled. For syntax information, select Cisco IOS Release 12.2 Configuration Guides and Command References > Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2 > System Management > Troubleshooting and Fault Management.