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Highlighted
Beginner

replace a switch in a stack

Hello,

what is the method, step by step,  to replace a switch in a stack ?

I already had to change the master of a stack once and it was problematic

I had lost the port configuration of the switch master.

So in prevention, I would like to have the exact procedure

 

 

first, if it is the stack master that must be replaced

#sh swi

*1       Master 00b6.xxxx.xxxx    13     4       Ready

 2       Member 7018.xxxx.xxxx    11     4       Ready

3       Member 2c73.xxxx.xxxx    9      4       Ready

4       Member 2c73.xxxx.xxxx    7      4       Ready

5       Member 2c73.xxxx.xxxx    1      4       Ready

 

#sh running-config

.....

switch 1 provision ws-c2960x-48lpd-l

switch 2 provision ws-c2960x-48fpd-l

switch 3 provision ws-c2960x-48fpd-l

switch 4 provision ws-c2960x-48fpd-l

switch 5 provision ws-c2960x-48fpd-l

 

all switches have the same  IOS version but my spare switch in case of problem is a c2960x-48fpd-l ( currently the switch master in production is a c2960x-48lpd-l model).

 

 in second, Is the procedure the same if the switch to be replaced is not the master but a member?

 

and finally, in a 3850 switch stack, is it the same procedure?

 

thank you

4 REPLIES 4
Highlighted
VIP Expert

Most of the switch proceedure is the same - when you replacing the part of the stack member or master switch.

 

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

 

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-0_2_EX/stack_manager/configuration_guide/b_stck_152ex_2960-x_cg/b_stck_152ex_2960-x_cg_chapter_010.html#concept_6E38EA556E8A4A198FD7BBDC159F4B07

 

When master switch fails, other slave switch become master, when the master switch replaced, it will not become master, the slave (be as master) - until whole stack rebooted.



BB


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Highlighted
Beginner

Thank you!

So  I need to connect to the new switch ( before stacking this switch)is it given the highest priority?

Like this :

#switch 1 priority 15

( if I want to replace the master)?

Highlighted

If you are replacing a switch master, you want to connect to the new switch and provision it with the same switch number and priority as the old master but as BB also said, the priority will not change until the stack is rebooted. 

HTH

Highlighted

sure the number should be highest if that should be master ( but required whole stack required to reboot) to become new one to be master.

 



BB


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