Monday, March 18, 2019

Nexus + VPC Spanning Tree configuration

We have 2x Nexus 3K's running VPC links to our edge switches. (2x 10gb connections, 1 from each NX to the edge switches)

I want the Nexus switches to be the spanning-tree root.

But what is the best practice for configuring this? Since both Nexus switches aren't in stack I assume they can't both be root?

Should I run the command:

span vlan 200 root

on both switches?

Or just on the primary? and set a higher prio # on the secondary?



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