Forum Discussion
JG
Dec 16, 2014Cumulonimbus
With v11.*, force-offline the standby device before applying a hotfix release to it. The offline state will then persist across reboot. I have tried this.
With v10.*, I remember F5 recommends to start the upgrade with the device with the numerically highest mgmt IP address before applying a hotfix release. I'd unplug the network of the data plane if I was not sure - especially in a major upgrade when I might have to rebuild device trust.
With v11., the device with the highest mgmt address will be automatically selected as the active device, if the standby device does not have the persistent force-offline state carried across reboot. This behavior is totally different from v10..