Specifications

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)

OL_28738-01

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

debug udld

To enable the debugging of UDLD activit y, use the debug udld command. To disable the debugging

output, use the no form of this command.

debug udld {events | packets | registries}

no debug udld {events | pa ck ets | regi st ries }

Syntax Description

Defaults T his command has no default settings.

Command Modes Privileged EXEC mode

Usage Guidelines T his command is supp ortedonly on the supervisor engin e and enterable only f rom the switch console.

Examples This exampl e shows how to debug the UDLD events:

Switch# debug udld events

UDLD events debugging is on

Switch#

This example shows how to debug the UDLD pa ckets:

Switch# debug udld packets

UDLD packets debugging is on

Switch#

This example shows how to debug the UDLD regi stry events:

Switch# debug udld registries

UDLD registries debugging is on

Switch#

events E nables the debugging of UDLD process events as they occur.

packets Enables the debugging of the UDLD pr ocess as it receives packets from the packet queue

and attempts to transmit packets at the request of the UDLD protocol code.

registries Enables the debugging of the UDLD process as it processes registry upcalls from the

UDLD process-dependent module and other feature modules.