Wednesday, April 28, 2021

VLAN path in cisco switches

Hi all. I have several Cisco switches (Catalyst, Nexus) connected to each other with end users workstation, servers, IP phones, management network and so on, each with a dedicated VLAN.

I would like to predict L2 path for certain VLAN, for example: "I don't want that VOIP traffic goes there, because that link (trunk port) is 100 Mbit while I have other paths with 1 Gbit speed" - just an example of course.

How can I manage this? If I connect to every switch and type

show spanning tree vlan XXX

I will find the path toward root switch, which is were traffic for a specific VLAN is directed.

Correct? Am I missing something?

Thank you.



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