Not quite sure what to make of this.
We have a couple of esx servers that have one 10G nic in Nex1 and a second in Nex 2. The links are not port channeled. The two nexus switches are linked by two 10g connections channeld and vpc'ed . Each nexus has two 1G connections Po'ed to a 3750 (our main access switch).
When we shut down one nexus all is good. No loss of connectivity, maybe a little blip but for the most part all is good.
When we bring up the shutdown nexus we are good UNTIL the nex actually comes on line. Then all the nodes lose connectivity for about 30-60 seconds.
The only thing we see in the logs is this.. last 9 seconds (as opposed to 30-60) but the timing is similar. (eth1/47 is one of the interswitch trunks)
%ETHPORT-5-IF_UP: Interface Ethernet1/47 is up in mode trunk
%ETHPORT-3-IF_ERROR_VLANS_SUSPENDED: VLANs 1,34 on Interface port-channel5 are being suspended. (Reason: vPC
peer is not reachable over cfs)
and 9 seconds later they are unsupended
ERROR_VLANS_REMOVED: VLANs 1,34 on Interface port-channel5 are removed from suspended state.
I dont know if this is normal but it would be nice if we could have two switches for HA .