User's Manual

Table Of Contents
292
Users Manual of GPL-8000
Device ID: XGS-6350-12X8TR
Port ID: FastEthernet0/1
Neighbor echo 1 device: XGS-6350-12X8TR
Neighbor echo 1 port: FastEthernet0/1
Message interval: 15
Time out interval: 7
UDLD Device name: XGS-6350-12X8TR
Switch_config#
Switch_config#show udld interface f0/1
Interface FastEthernet0/1
---
Port enable administrative configuration setting: Enabled
Port enable operational state: Enabled
Current bidirectional state: Bidirectional
Current operational state: Advertisment
Message interval: 15
Time out interval: 15
Entry 1
---
Expiration time: 36
Cache Device index: 1
Device ID: XGS-6350-12X8TR
Port ID: FastEthernet0/1
Neighbor echo 1 device: XGS-6350-12X8TR
Neighbor echo 1 port: FastEthernet0/1
Message interval: 15
Time out interval: 15
UDLD Device name: XGS-6350-12X8TR
Switch_config#
From the information above, you can find the three phases of the link state which UDLD detects:
Detection phase: In this phase, the UDLD packets are transmitted every other second.
Unknown phase: In this phase, the UDLD packets are transmitted every eight seconds.
Known bidirectional/unidirectional connection phase:
Once a link is established and labeled as bidirectional,
UDLD will transmit a probe/echo message every 16 seconds.