Cisco NCS 4200 Series Configuration Manual page 15

UniDirectional Link Detection (UDLD) Protocol
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
Interface Gi0/2/1
---
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
Interface Gi0/2/2
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled
Current bidirectional state: Unknown
Current operational state: Advertisement
Message interval: 15
Time out interval: 5
No neighbor cache information stored
Interface Gi0/2/3
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled
Current bidirectional state: Unknown
Current operational state: Link down
Message interval: 15
Time out interval: 5
No neighbor cache information stored
Interface Gi0/2/4
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Disabled
Current bidirectional state: Unknown
Interface Gi0/2/5
---
Port enable administrative configuration setting: Disabled
Entry 1
---
Expiration time: 33
Cache Device index: 1
Current neighbor state: Bidirectional
Device ID: FOC1528V27K
Port ID: Gi0/2
Neighbor echo 1 device: FOX1709P3D0
Neighbor echo 1 port: Gi0/2/0
Message interval: 15
Time out interval: 5
CDP Device name: RSP1A
Entry 1
---
Expiration time: 33
Cache Device index: 1
Current neighbor state: Bidirectional
Device ID: FOC1639V1Z4
Port ID: Gi0/4
Neighbor echo 1 device: FOX1709P3D0
Neighbor echo 1 port: Gi0/2/1
Message interval: 15
Time out interval: 5
CDP Device name: RSP1A
LAN Switching Configuration Guide, Cisco IOS XE Everest 16.6.1 (Cisco NCS 4200 Series)
Example: Verifying UDLD Protocol
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