Cisco NCS 4200 Series Configuration Manual page 16

Example: Verifying UDLD Protocol
Port enable operational state: Disabled
Current bidirectional state: Unknown
Interface Gi0/2/6
---
Port enable administrative configuration setting: Disabled
Port enable operational state: Disabled
Current bidirectional state: Unknown
.
.
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• This example shows UDLD protocol on the Ten Gigabit Ethernet interface.
Router# show udld interface tengigabitethernet 0/0/0
Interface Te0/0/0
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled
Current bidirectional state: Bidirectional
Current operational state: Advertisement - Single neighbor detected
Message interval: 15
Time out interval: 5
Router# show running-config | i udld
udld enable
udld message time 15
udld recovery
udld recovery interval 30
• This example shows the UDLD protocol neighbors.
Router# show udld neighbors
Port
------------ ------------- ------------ ------------ ----------------
Te0/0/0
Gi0/2/0
Gi0/2/1
LAN Switching Configuration Guide, Cisco IOS XE Everest 16.6.1 (Cisco NCS 4200 Series)
10
Entry 1
---
Expiration time: 43
Cache Device index: 1
Current neighbor state: Bidirectional
Device ID: FOX1736P0JP
Port ID: Te0/1/0
Neighbor echo 1 device: FOX1709P3D0
Neighbor echo 1 port: Te0/0/0
Message interval: 15
Time out interval: 5
CDP Device name: RSP1B
Device Name
FOX1736P0JP
FOC1528V27K
FOC1639V1Z4
UniDirectional Link Detection (UDLD) Protocol
Device ID Port ID
1 Te0/1/0
1 Gi0/2
1 Gi0/4
Neighbor State
Bidirectional
Bidirectional
Bidirectional