Replacing a switch in 2960 stack

[Psmurali89]

Hi All

I got 2x 2960 switches in a stack. The member switch failed

Switch 1  - Member -  switch priority is 1

Switch 2 - Master - switch priority is 5

I got spare switch, just need to check if the below steps are ok:  

* Check new switch has same IOS and hardware model. 

* Connect to console and apply "switch 1 provision ws-c2960xxxx"  <<<< I believe this line is needed? 

* remove the failed switch and connect the new switch stack and power cable and power on. 

I believe all the configs will be copied across to the new member switch? 

[Psmurali89]

Unfortunately we dont have support contact and we going to replace with 9200 and this PDU change is the initial step to that migration. I got spares and all ready to go.  Will let you know how it goes. 

One last question, is there a way to identify which switch is master by looking at the stack physically? 

[Reza Sharifi]

Have a look at this document. Hopfully this applies to the 9200 and 9300 as well.

To identify the stack master:

•

Enter the show switch user EXEC command.

•

Look at the front panel Master (MSTR) LED. It is solid green only for the switch that is the stack master.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/troubleshooting/switch_stacks.html

HTH

[Joseph W. Doherty]

"That is correct. In your example, if 15 fails, 10 will become the master and once you replace it, you want to give the new switch a lower priority than 10 (5, 6, etc..) this way there is no change, and no reelection."

Do I recall correctly there's only a re-election if the (current) master fails?  I.e. even if the added switch was a priority of 10, vs. a currently running master of priority 15, the current master remains master?  (No preemption?)

Personally, never really cared much about which switch in the stack was the current master.  I recall, on the 3750 series it was recommended not to use a master to also host uplinks.  I also recall (???) you might have needed, if using a console port, to connect to the current master (but almost all of my remote access was across the net).

[Reza Sharifi]

Do I recall correctly there's only a re-election if the (current) master fails?  I.e. even if the added switch was a priority of 10, vs. a currently running master of priority 15, the current master remains master?  (No preemption?)

Joe,

You are correct. Sorry, I just did not convey the message as clearly as I should have, all in one post.