Quick Reference Guide

UDLD Commands 789
debug udld
Use the debug udld command in Privileged EXEC mode to enable the
display of UDLD packets or event processing.
Use the no form of the command to disable debugging.
Syntax
debug udld {packet [receive|transmit]|events}
no debug udld {packet [receive|transmit]|events}
• Packet —Display transmitted and received UDLD packets.
•
Receive —Debug packets received by the switch.
•
Transmit —Debug packets transmitted by the switch.
•
Events —Display UDLD events.
Default Configuration
By default, debugging is disabled.
Command Mode
Privileged EXEC mode
UDLD Status The status of the link as determined by UDLD. The options
are:
• Undetermined – UDLD has not collected enough information
to determine the state of the port.
• Not applicable – UDLD is disabled, either globally or on the
port.
•
Shutdown – UDLD has detected a unidirectional link and
shutdown the port. That is, the port is in an errDisabled state.
•
Bidirectional - UDLD has detected a bidirectional link.
•
Undetermined (Link Down) – The port would transition into
this state when the port link physically goes down due to any
reasons other than the port being put into D-Disable mode by
the UDLD protocol on the switch.
Field Description
2CSNXXX_SWUM200.book Page 789 Tuesday, December 10, 2013 1:22 PM