Upgrade C9500 from GUI while in Virtual Stackwise

[badgewick]

We currently have 2 C9500-48Y4C switches configured in a Virtual Stack.  Is it possible to do the software upgrade via the GUI while the switches are still stacked?  Will it upgrade both switches?  

[balaji.bandi]

Yes, but I avoid that method from the GUI

Two options: the normal traditional way to upgrade or the ISSU

ISSU works for me  (again, this will go into argument. Some people, yes, some do not) - I am ok with ISSU for most of the upgrade went as expected until 17.9.5 (so far)

check the matrix @

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst_standalones/b-in-service-software-upgrade-issu.html

Other methods :

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-9500-series-switches/222279-upgrading-catalyst-9500-switches.html

[Flavio Miranda · Accepted solution]

@badgewick 

Supported only after  IOS XE 17.9.1. 

Manage Catalyst 9000 Switches Using the Web UI - Cisco

[badgewick]

We are currently running IOS XE 17.13.1, so we should be good to go.

[Flavio Miranda]

Definitely. 

[Leo Laohoo]

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@badgewick wrote:
Is it possible to do the software upgrade via the GUI while the switches are still stacked?

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Let us know how it goes.

[badgewick]

I performed the upgrade through the GUI last Monday and it was a success.  Very smooth with no problems.  During the upgrade it transferred the software from one switch to the other.  We never lost connectivity until it rebooted. 

[shambhu.kumar]

Hello@badgewick

- Please go for normal install mode upgrade procedure.

- Upgrading through Web UI works well in a specific lab environment of Cisco with default configuration.
- Since you are using XE 17.13.1, There is no direct jump from 17.13.X to 17.14.X or 17.15.X in ISSU upgrade.

[Devaa]

That's great!