Symptom

ASR1k shows below error when try to disable UDLD from a particular port. Router(config)#int te0/1/0 Router(config-if)#udld port disable %ERROR: Standby doesn't support this command ^ % Invalid input detected at '^' marker.

Conditions

ASR1000 with dual RP2 module.

Workaround

Diable the UDLD globally and then disable it on a particular interface after which you can again enable it globally. This will end up disabling the UDLD on that particular port. Router (config) no UDLD aggressive Router(config) interface Router(config-if)udld port disable Router(config) UDLD aggressive

Further Problem Description