topic Re: Replace Member Switch that is part of a Stack in Switching

Replace Member Switch that is part of a Stack

aconticisco — Tue, 26 Jan 2021 13:57:00 GMT

Hi,

Do I need to configure anything on the replacement switch if it is the same model and running same IOS version?

I ran "show switch" on it and it stats that it is Switch 5 so not sure how it got this right as the faulty Switch was indeed member 5.

So now I just need to confirm if anything needs to be configured on this Switch or if I can just go ahead and power it off and connect the StackWise Connectors.

What should I monitor after powering back on, any useful commands?

Thanks

Re: Replace Member Switch that is part of a Stack

balaji.bandi — Tue, 26 Jan 2021 14:39:54 GMT

Power down old switch and remove from stack

Offline prepare the switch :

- New switch load same IOS and feature set as exiting stack members

- New switch change switch member number and priority to the old switch member number and priority

- save the config and power down new switch

bringing to Live

- connect the cable new switch to Live stack via stack wise cabling and power new switch up

useful commands :

show switch - will give once this is provisioning.

show switch stack-ports

show switch stack-ring speed

Re: Replace Member Switch that is part of a Stack

aconticisco — Tue, 26 Jan 2021 20:40:04 GMT

Hi BB,

Replacement Switch already shows the following out of the box when show switch command is entered:

*5 Active xxxx.xxxx.xxxxx 11 Vxx Ready

This matches the faulty switch in terms of Member Number and Priority. Current Master and Slave have higher priority.

So in this case I can simply power it OFF, connect StackWise Cables and power back ON

In case there was a mismatch with the Member Number and/or Priority I would need to specify them to match old faulty Switch and copy run start to save.

Hope the above makes sense and thank you for the additional commands

Re: Replace Member Switch that is part of a Stack

Joseph W. Doherty — Tue, 26 Jan 2021 21:56:09 GMT

What model switches?

Re: Replace Member Switch that is part of a Stack

aconticisco — Tue, 26 Jan 2021 22:58:14 GMT

A stack of C3850's

Re: Replace Member Switch that is part of a Stack

balaji.bandi — Wed, 27 Jan 2021 02:39:04 GMT

This is a standalone switch you want to join to exiting stack is this correct? priority 11 set by you?

Can you post Live stack?

show switch - will give once this is provisioning.

show switch stack-ports

show switch stack-ring speed

see the priority list (we do not want to assume something there) if the other master has higher priority before connecting this one.