UDLD In EtherChannel

[Ayub]

If UDLD is enabled under fiber ports, if loop accurs/detected with one of fiber link in EtherChannel, would the whole EtherChannel will go down/error-disbaled or would only down the specific port will go down in EtherChannel ?

[Peter Paluch · Accepted solution]

Hello,

Only the affected physical port should go down, not the entire EtherChannel. After all, UDLD can be enabled only on individual physical member interfaces of an EtherChannel - there are no UDLD commands available on the Port-Channel interfaces, anyway.

Best regards,
Peter