Symptom
When span destination port-channel is UP’ing after reload the linecard module that contains span destination port-channel, it’s seen udld neighbor mismatch on span source port-channels.
Conditions
- reload the linecard module that contains span destination port-channel
- when span destination port-channel is UP’ing, it’s seen udld neighbor mismatch on span source port-channels
- udld neighbor mismatch is not happened when reloading module with only span source port
There are 3 trigers.
1. Configure SPAN session up, then bring up PO 100 (No UDLD error if PO is up before SPAN session is up)
2. Reload Chassis >> randomly happens based on SPAN is up before PO is up
3. Reload all modules of PO members
