Solved: 6500 sup 720 IOS upgrade question

Jason Dance · ‎03-16-2016

Hi.

I read this document about upgrading the IOS on a 6500 with redundant Sup720-3Bs. http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/71585-cat6k-red-supeng-swimg-upg.html. ; I am going from IOS 12.2(33)SXH to 12.2(33)SXJ10.

When I got to the part after the standby comes up on the new version and its time to issue "redundancy force-switchover", what sort of network disruption should I be expecting as I switch to the newly upgraded standby Sup?

Regards,

Jason

Iulian Vaideanu · ‎03-16-2016

There is a note at the end of step 13 in that document, stating that "In middle of the software upgrade procedure, the operational redundancy mode is RPR. This is evident from the show redundancy states command output shown in step 12. In RPR redundancy, during switchover, all switching modules are powered on again. So there is be a few minutes of downtime."

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Iulian Vaideanu · ‎03-16-2016

There is a note at the end of step 13 in that document, stating that "In middle of the software upgrade procedure, the operational redundancy mode is RPR. This is evident from the show redundancy states command output shown in step 12. In RPR redundancy, during switchover, all switching modules are powered on again. So there is be a few minutes of downtime."

Jason Dance · ‎02-01-2017

Thanks Iulian. This indeed happened when I performed this upgrade over the weekend.

Iulian Vaideanu · ‎02-01-2017

You sure took a while to go for it :)...

Jason Dance · ‎02-02-2017

Priorities, what can I say? :)