Hi,I've a ready and wroking setup for Cisco NAC and i need to upgrade it to the new ISE, other than dot1x changes n the switches configurations, what else will need to be configureddoes the upgrade makes it a fresh installation?

I have a deployment of NAC Solution where CAM located @ HQ, Users at HQ has a dedicated CAS, while other sites has a seperate CAS/NAC Modular  located at thier sitesthe deployment is L3 OOB, in case the CAS at Remote site has failed, is there a way ...