The session time-out setting does not persist after you log out of the current ILOM session. You must reset the session time-out each time you log in to the ILOM web interface.
Follow these steps to set the amount of time an ILOM session will remain idle before logging out:
Log in to ILOM.
Select System Information -- > Session Time-Out.
The Session Time-Out Page appears.
From the Session Time-Out drop-down list, select the amount of time that the ILOM session will remain idle when there is no ILOM activity.
If your session is inactive for the selected amount of time, you will be logged out of ILOM automatically.