11-04-2021 06:34 PM
I have a pair of Catalyst 9500 clustered via virtual stack. Is there a setting so that, when doing an IOS update, the cluster will update one member at a time and have the other member stay in full operation?
11-04-2021 07:29 PM
certain 9500 models in SWV supports ISSU upgrades to minimize the downtime. You can read more about it here
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst_standalones/b-in-service-software-upgrade-issu.html
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