09-28-2016 08:37 AM
Good evening,
in our lab I set up a normal Nexus 5672 pair with two FEX.
VPC-Peerlink between the 5672 and VPCs to the FEX - eVPC so that they're connect redundantly.
Also a fresh DCNM installation is connected to this equipment but there seems something to be strange.
The topology shows that only one 5672 has connection to the FEX.
Also there is the vPC channel missing, the topology only shows two connections. (Screenshot attached)
Is reinstalled everything more than one time and started from scratch but the situation is always the same.
My last idea was to add a third FEX to the lab and whoops.....this FEX is shown with a PO config in the topology, but there is still one connection - to the first parent/5672.
The setup works fine, but the DCNM still not recognize the real topology.
I hope there is someone out there who can help me :)
EDIT:
I forget to show the interface list in DCNM, here you can see that on parent1 the column "Connected to" show the connected FEX and Uplink ports. On parent2 these columns are blank. The VPC status on the CLI shows that both parents are connected. (Screenshot attached)
11-07-2016 10:35 PM
Is nobody using the DCNM in a combination with a pair of Nexus ?
03-29-2017 01:11 AM
We have some Nexus 7k,5k and FEX. Our topology maps are also wrong.
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