Solved: 9407R Dual supervisors upgrade

Drev · ‎11-15-2021

Hi,

I am upgrading a C9407R (2 supervisors installed) form 16.12.4 to 17.3.4

and another one from 16.9.2 to 17.3.4

I know I cannot use ISSU to jump form 16.X to 17.X (don't really need ISSU anyway).

I see some conflicting information on the Net on how to upgrade a 9400 with 2 sups!

My question is:

Should I use the install command with the 2 sup connected or should I install command on only one sup at a time?

-->remove standby sup > upgrade active > put back inactive > remove newly upgraded sup > then upgrade the last one?

With command: "install add file bootflash:cat9k_iosxe.17.03.04.SPA.bin activate commit" both cases.

In my understanding, it should be fine if I upgrade with both supervisors connected. Just checking if I am not missing something/issues with a particular IOS version.

Thanks guys!

Leo Laohoo · ‎11-15-2021

@Drev wrote:

With command: "install add file bootflash:cat9k_iosxe.17.03.04.SPA.bin activate commit" both cases.

This command will push the package files from the active supervisor to the secondary supervisor.
Because of the "commit" option, the process ~~will~~ may reconfigure the boot variable to the new package.conf (or maybe not -- a bug).

After this process, the entire chassis will reboot.

Be mindful this upgrade is from 16.X.X to 17.X.X and this will include a mandatory microcode upgrade which will take around 14 minutes.

View solution in original post