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c9500 clustering - always up?

jmcgrady1
Level 1
Level 1

‎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?

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Arshad Safrulla
VIP Alumni
VIP Alumni

‎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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Arshad Safrulla
How to Upgrade Cisco Catalyst 9000 (Cat9K) with ISSU | Zero Downtime Upgrade Process
How to Upgrade Cisco Catalyst 9000 (Cat9K) with ISSU | Zero Downtime Upgrade Process
cisco.com/c/en/us/td/docs/switches/lan/catalyst...
In this video, we guide you through the process of upgrading a Cisco Catalyst 9000 (Cat9K) switch using ISSU (In-Service Software Upgrade). Learn how to perform the upgrade without downtime, ensuring continuous network service and minimizing disruptions during critical network changes. Related ...
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