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Spanning Tree MSTP region and general STP question

Spanning Tree MSTP region and general STP question

Anonymous
Not applicable
Hi all,

I’m getting ready to decommission some Summit x450e’s and replace them with x460-G2’s. As I’m not very familiar with MTSP or Extreme in general and I’m looking for a little assistance. My plan is to create a trunk between the new 460 stack and one of the old switches and slowly move ports over so things can stay up while I’m doing it.



What I don’t grasp is the MTSP region. Does my new switch stack need to match the MTSP region on the switch I’m going to establish a trunk with? Currently there is no trunking between the old switches though.



As it is now, here is the config on one of the 450’s:



configure mtsp region xxxxxxxxx

configure stpd s0 delete plan default ports all

disable stpd s0 auto-bind vlan default

enable stpd s0 auto-bind plan Default



Coming from the Cisco world, should I lower the STP priority on the new stack before adding it? I’m so confused at this point. Appreciate any assistance.



J.
3 REPLIES 3

Jeremy_Gibbs
Contributor
As long as the STP on the root bridge is lower than the STP priority of another switch you deploy, it will be fine. I recommend code 23.3.1, it has a STP config similar to Cisco. Mucher easier to work with.

I believe you can. Although you will probably want to turn on edge-safeguard and set your edge ports up correctly etc to stop ports going up and down from causing topology changes.
configure stpd s0 ports link-type edge 3:33
configure stpd s0 ports edge-safeguard enable 3:33
configure stpd s0 ports bpdu-restrict enable 3:33

Anonymous
Not applicable
I'll give that a try Jeremy. Appreciate the tip. Can MTSP be left default on the new stack? From what I'm reading that may be a good idea.
GTM-P2G8KFN