planning an upgrade from 4.1.3 to 4.2.1, and then to 4.2.3, possibly 4.2.3SR3. I am hopeful to get this done in one maintenance window. Is there a time period which I should let pass between upgrading and letting the pub/sub sync, before starting to upgrade again? thanks
the upgrade does affect the phone loads and there is the chance you have a higher version than the ones the original CCM 4.2(3), if you want to verify what's going to be installed you can look at the readme for CCM 4.2(3) at the download page
yes, this helps. the other question I had is to upgrade the pub, including the SR, and then start on the sub, or upgrade the pub then sub, and then starton the SR. Also, is a final reboot of all servers absolutely necessary. thanks
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