Cisco Catalyst 4500 Series Command Reference Manual page 1004

show udld
Expiration time: 43300 ms
Cache Device index: 1
Current neighbor state: Bidirectional
Device ID: FOX10430380
Port ID: Gi1/34
Neighbor echo 1 device: FOX104303NL
Neighbor echo 1 port: Gi1/34
TLV Message interval: 15 sec
No TLV fast-hello interval
TLV Time out interval: 5
TLV CDP Device name: Switch
To verify link status as reported by UDLD, enter the following command:
Switch# show udld neighbors
Port
----
Gi1/33
Gi1/34
To verify Fast UDLD configuration, enter the following command:
Switch# show udld fast-hello
Total ports on which fast hello can be configured: 16
Total ports with fast hello configured: 3
Total ports with fast hello operational: 3
Total ports with fast hello non-operational: 0
Port-ID
-------
Gi1/45
Gi1/46
Gi1/47
To verify status for a particular link as reported by Fast UDLD, enter the following command:
Switch# show udld fast-hello g1/33
Interface Gi1/33
---
Port enable administrative configuration setting: Enabled / in aggressive mode
Port enable operational state: Enabled / in aggressive mode
Current bidirectional state: Bidirectional
Current operational state: Advertisement - Single neighbor detected
Message interval: 200 ms
Time out interval: 5000 ms
Port fast-hello configuration setting: Enabled
Port fast-hello interval: 200 ms
Port fast-hello operational state: Enabled
Neighbor fast-hello configuration setting: Enabled
Neighbor fast-hello interval: 200 ms
Entry 1
---
Expiration time: 500 ms
Cache Device index: 1
Current neighbor state: Bidirectional
Device ID: FOX10430380
Port ID: Gi1/33
Neighbor echo 1 device: FOX104303NL
Neighbor echo 1 port: Gi1/33
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
2-946
Device Name Device ID
----------- ---------
FOX10430380 1
FOX10430380 1
Hello Neighbor-Hello Neighbor-Device Neighbor-Port Status
----- -------------- --------------- ------------- ------
200 200
200 200
200 200
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
Port ID Neighbor State
------- --------------
Gi1/33 Bidirectional
Gi1/34 Bidirectional
FOX104303NL Gi1/45
FOX104303NL Gi1/46
FOX104303NL Gi1/47
Operational
Operational
Operational
OL-27596 -01