How does one change a vdc id #?

[Orlando_Native]

I want to create a double layered vpc environment using 9336c-fx2 switches running nx-os 9.x.  According to some doc I've seen; each vpc switch pair's vdc id needs to be unique in the network.

By default; the id seems to be 1.  Is it possible to change that default id to a different value?  Would additional licensing be required?

I don't need multiple vdc's.  I just need (apparently) unique vdc id's for each vpc pair of switches.

[Orlando_Native]

Additional info:   https://www.letsconfig.com/how-to-configure-double-sided-vpc-in-cisco-nexus/

"For second peer of vPC, we are choosing N7K-03 as primary and N7K-04 as secondary. Here note that, vPC domain id needed to be unique, which means you can not use this id anywhere else in your network."

[Sergiu.Daniluk]

Hi @Orlando_Native 

From your question, I think there is a confusion here.

VDC = virtual device context = chassis virtualization technology supported only on Nexus 7000

VPC = virtual private channel = layer 2 virtualization technology supported on (almost) all Nexus series.

There is no correlation between these two.

Indeed, in a layer 2 domain, the VPC domain ID needs to be unique and that one you configure it when you define your domain:

vpc domain <ID>

This is required to be unique because the ID is used to generate the virtual MAC, shared by the two VPC peers, for protocols such as STP, LACP etc.

Hope it helps,

Sergiu