Renumbering C9500 switches in stack

[jmcgrady1]

I have a pair of C9500 switches in a virtual stack.  If i use the "switch #num renumber #num2" command to change a members ID, and have not yet rebooted, can i revert the renumber command? Or can i enter "switch #orignum renumber #orignum" to effectively revert the change?

[jasondai96193]

• Yes. Your changes won't take effect unless you restart the device.

[balaji.bandi]

This will change port numbering also when you change, so this should be done in the maintenance window by understanding well of side effects.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/16-9/configuration_guide/ha/b_169_ha_9500_cg/configuring_cisco_stackwise_virtual.html

[jmcgrady1]

Hi BB. My main concern is whether "switch #orignum renumber #orignum" will undo any previous changes made to that switches member number when it comes time to restart

[balaji.bandi]

Personally we do most of the config on the intial planning stage, once gone to Live never had chance to change the switch number.

Technically if i understand correctly, this changes switch numbers so port number will change right ? that means whole config of your will be changed as per my understand.

Why you like to change the switch number what is the reason ?

[jmcgrady1]

I changed the switch number by mistake and i want to change it back so that it stays unchanged during the next restart

[balaji.bandi]

sure you can change back to orginal numbering and save the config, (i am not sure what will be side effect of this when youm reboot) make a note yourself (this change was done, take a backup config out of box to be safe) so you aware and be cautiousious when the switch reload accidentally.

Note : Never test configs on production system.