Cisco Catalyst 2950 Command Reference Manual page 441

Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
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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
udld
udld port
udld reset
0L-10102-01
Description
Enables UDLD on all ports on the switch.
Enables UDLD on a specific port.
Resets any interface that was shut down by UDLD.
Catalyst 2950 and Catalyst 2955 Switch Command Reference
show udld
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