I have a pair of Nexus 5548s in the lab. I'm trying to build a VPC to a C220M3 using a P81E adapter. I cannot get the int port-channel 30/vpc 30 to come up. Any ideas?
B5548# show vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 1
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status: success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary
Number of vPCs configured : 1
Peer Gateway : Enabled
Peer gateway excluded VLANs : -
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po56 up 1-5,90-93
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
30 Po30 down* Not Consistency Check Not -
Applicable Performed
B5548#
A5548#
A5548# show port-channel sumA5548#
B5548# show port-channel sumB5548#
After a Year and some change I would've hoped there would be a solution to this. i just encountered the same issue myself. Doesn't make any sense. No mismatch on the VPC parameters. The individual link is up/up but the port-channel won't come up.
What is connected to the other side of the ports? What do you see when you using the following command:
sho lacp counters interface port-channel 30