Adding a new switch to a 9300 stack?

[webberr]

I have an existing 6-switch stack of 9300's. I'm trying to add a 7th switch. I followed this doc: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/16-9/configuration_guide/stck_mgr_ha/b_169_stck_mgr_ha_9300_cg/managing_switch_stacks.html#reference_htk_dbg_11b

And proceeded to:

1. Power off the new switch.

2. Through their StackWise-480 ports, connect the new switch to a powered-on switch stack.

3. Power on the new switch.

However after I did that the stack is detecting a version mismatch:

NY3-IDF03-ASW-01#sho switch
Switch/Stack Mac Address : 0072.7854.2b80 - Local Mac Address
Mac persistency wait time: Indefinite
H/W Current
Switch# Role Mac Address Priority Version State
-------------------------------------------------------------------------------------
1 Standby 5061.bf59.3000 1 V01 Ready
2 Member 5061.bfc0.1900 1 V01 Ready
3 Member 5061.bf59.9800 1 V01 Ready
4 Member 5061.bfc0.2700 1 V01 Ready
5 Member 5061.bf59.9080 1 V01 Ready
*6 Active 0072.7854.2b80 1 V01 Ready
7 Member 002f.5c0d.5900 1 V02 V-Mismatch

NY3-IDF03-ASW-01#

How do I get the new switch to run the same version?

Thanks! Rob.

[luis_cordova · Accepted solution]

Hi @webberr ,

Maybe this links can give some help:

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/64898-upgrade-3750-stack.html#cvgh12

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/16-5/configuration_guide/stck_mgr_ha/b_165_stck_mgr_ha_9300_cg.pdf  (page 9)

Regards

[webberr]

That guide describes the auto-upgrade feature - that should work. Thanks!