Specifications

2-238
Catalyst 2950 and Catalyst 2955 Switch Command Reference
78-15304-01
Chapter 2 Cisco IOS Commands
show udld
This is an example of output from the show udld interface configuration command when the aggressive
mode is configured:
Switch# show udld gi0/1
Interface Gi0/1
---
Port enable administrative configuration setting:Enabled / in aggressive mode
Port enable operational state:Enabled / in aggressive mode
Current bidirectional state:Unknown
Current operational state:Link down
Message interval:7
Time out interval:5
No neighbor cache information stored
Related Commands Command Description
traceroute mac Enables UDLD on all ports on the switch.
udld (interface configuration) Enables UDLD on a port.
udld reset Resets any interface that was shut down by UDLD.