topic Summit stack dual master in ExtremeSwitching (Other)

Summit stack dual master

Tim_Smith1 — Mon, 28 May 2018 11:07:00 GMT

Hi expert,
My customer X460 stack have dual master several times, may I ask what kind of information I need to ask him to collect for this issue? Is the show tech enough?

RE: Summit stack dual master

Tim_Smith1 — Mon, 28 May 2018 11:08:00 GMT

Currently it's working fine. Do I have to collect information from all individual slot?

RE: Summit stack dual master

Vellachery__Sum — Mon, 28 May 2018 11:32:00 GMT

Tim,

What is the EXOS release running on the X460 stack?
Provide the output of "show port stack-ports rxerrors" and "show port stack-ports txerrors"

RE: Summit stack dual master

Vellachery__Sum — Mon, 28 May 2018 11:38:00 GMT

Tim,

Adding to it, please check the following KB Articles - Dual mastership seen on a SummitStack

https://gtacknowledge.extremenetworks.com/articles/Solution/Stack-sync-issues

RE: Summit stack dual master

Sushruth_Sathya — Mon, 28 May 2018 13:42:00 GMT

#show stacking detail will also help. It will usually show up in newer versions' show techs. But in older versions, you will need to collect it.

RE: Summit stack dual master

Sarah_Seidl — Tue, 29 May 2018 22:00:00 GMT

Are you using summit stacking or v.80 stacking. We've had challenges too. We have 460 (g1) units and have replaced most summit stacking modules with the v.80 where we could.
In case you need it:
Show ver:
SS-B-# = summit stack
SS-V80-B-# = V.80 stacking