Hello,
I am experiencing a very tricky problem over Nexus 7K configured with VPC as described in the KB: CSCsy16113
Symptom: The vPC stays in the suspended state on a device when both vPC peer devices power cycle
and only one of these devices comes back online.
This problem is known in both release 4.0(2) and release 5.0(3) and should have been resolved since release 5.
I've updated from release 4.0(2) to release 5.0(3) but the problem is still present.
here a shoot of sh vpc:
N7K-DCM-LAN-B# sh vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 201
Peer status : peer link is down
vPC keep-alive status : Suspended (Destination IP not reachable)
Configuration consistency status: failed
Configuration consistency reason: Consistency Check Not Performed
Type-2 consistency reason : Consistency Check Not Performed
vPC role : none established
Number of vPCs configured : 2
Track object : 201
Peer Gateway : Enabled
Dual-active excluded VLANs : -
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 down -
vPC status
----------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
-- ---- ------ ----------- -------------------------- ------------
2 Po2 down failed Consistency Check Not -
Performed
3 Po3 down failed Consistency Check Not -
Performed
Thanks for your support
Regards