Debug Udld - Cisco 4500M Command Reference Manual

Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches

debug udld

To enable debugging of UDLD activity, use the debug udld command. To disable debugging output, use
the no form of this command.
Syntax Description
events
packets
registries
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History Release
12.1(8a)EW
Usage Guidelines
This command is supported by the supervisor engine only and can be entered only from the
Catalyst4500 series switch console.
Examples
This example shows how to enable debugging of UDLD events:
Switch# debug udld events
UDLD events debugging is on
Switch#
This example shows how to enable debugging of UDLD packets:
Switch# debug udld packets
UDLD packets debugging is on
Switch#
This example shows how to enable debugging of UDLD registry events:
Switch# debug udld registries
UDLD registries debugging is on
Switch#
Related Commands
undebug udld (same as no debug udld)
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debug udld {events | packets | registries}
no debug udld {events | packets | registries }
Enables debugging of UDLD process events as they occur.
Enables debugging of the UDLD process as it receives packets from the packet queue and
attempts to transmit packets at the request of the UDLD protocol code.
Enables debugging of the UDLD process as it processes registry upcalls from the UDLD
process-dependent module and other feature modules.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
debug udld
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