If UDLD is configured to detect when a link is still up, but for whatever reason BPDUs have stopped, what use is configuring it on links that are connected to a vPC? Can a VPC configuration still benefit from UDLD?
Note: we've installed a 3850 stack with 2, 10G interfaces configured as a 20G port-channel. 1, 10G connecting to 1 Nexus core 5500 and 1, 10G connecting to the other Nexus core 5500.
We've configured a vPC so both 3850 trunks are forwarding.
Thanks - Pat