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Got the following from a customer and want some field guidance. "We're currently running a Cisco ISE deployment (2 nodes) on code version 2.3 patch 4. There is a project in-flight to deploy guest services that is nearing the tail end. A few minor bugs have cropped up that we believe are fixed in ISE version 2.4. When the PARTNER spoke with Cisco TAC they were told the upgrade from 2.3 to 2.4 can be problematic and they've seen a high number of failures. The recommendation they received was to backup the ISE configurations and databases, rebuild our nodes on the new code version and then restore. This is going to require a fair amount of effort and disruption to our environment. I'm hoping you can help with a few things,
Solved! Go to Solution.
I was going to start with the upgrade readiness tool. Do you know if there is any risk to ISE production running this tool? Or, is it recommended to run during a maintenance timeframe?