I have question about ISE failover .
I have two ISE appliaces in two different location . I am trying to understand the fail-over scenario and fall-back scenario
I have gone through document as well however still not clear.
my Primary ISE server would have primary admin role , primary monitoring node and secondary ISE would have secondary admin and secondary monitoring role .
In case of primary ISE appliance failure , I will have to login into secondary ISE node and make admin role as primary but how about if primary ISE comes back ? what would be scenario ?
during the primary failure will there any impact with users for authentication ? as far as PSN is available from secondary , it should work ...right ?
and what is the actual method to promote the secondary ISE admin node to primary ? do i have to even manually make monitoring node role changes ?
will i have to reboot the secondary ISE after promoting admin role to primary ?