Symptom
WLC has session-timeout value which can be set only up till 24 hours. After enabling "AAA override" feature on WLC to override its local override session-timeout value by ISE's session-timeout, we realize that ISE session-timeout is limited to 0 to 65535 seconds which is even lesses than WLC session-timeout. Where as ACS 5.5 server can go up to 2147483647 seconds / 68 years.
Conditions
Using ISE 1.3 as a RADIUS server for wired/ wireless clients.