A customer told me he did an upgrade from a VSS (2 6500 equipments). He loaded the new IOS on appliances and reboot the Standby-HOT unit. At this moment he noticed the service was down for 30-40 seconds and I think it's impossible cause all connections were redundants and should be managed by active unit.
I'm gonna to upgrade a VSS and I'd like to know if the customer afirmation is correct.
I click on your response like Resolve but reading the document you post I could see the proccess when you upgrade a VSS without eFSU.
It doesn't tell anything about VSS changes to dual-active mode when an upgrade is done, it comments VSS works at 50%:
"After successful bootup of the switch 2 (standby virtual switch) to the new image or file system, verify the peer relationship between supervisor engines are in RPR state (cold standby). At this stage, the Cisco Virtual Switching System will be operating at 50-percent capacity."
It would be great to see the logs from console when the upgrade was done. If it is done correctly you should _not_ end up in a dual-active situation. The fact that you (or rather, your customer) di, suggests that soemthing might not have been configured correctly.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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