ipsecSecurityProfileInactivityTimer 1.3.6.1.4.1.838.3.14.1.2.1.8

The number of seconds of inactivity before the SA is removed. When 0, SA inactivity timer is disabled. The minimum allowed expiration timer value is 10*60 = 600 seconds (i.e., 10 minutes). The maximum value is 86400 seconds (i.e., 24 hours). Note that the inactivity timer, if enabled, must be less than the expiration timer minus one minute, to ensure it will expire for an idle SA prior to the start of rekeying.