When it has been enabled, this notification is generated whenever a session is taken down, regardless of whether the session went down normally or not. Its purpose is to allow a management application (primarily an accounting application) that is monitoring the session statistics to receive the final values of these counters, so that the application can properly account for the amounts the counters were incremented since the last time the application polled them. The gsmpSessionStartUptime object provides the total amount of time that the session was active.

This notification is not a substitute for polling the session statistic counts. In particular, the count values reported in this notification cannot be assumed to be the complete totals for the life of the session, since they may have wrapped while the session was up.

The session to which this notification applies is identified by the gsmpSessionThisSideId and gsmpSessionFarSideId which could be inferred from the Object Identifiers of the objects contained in the notification. An instance of this notification will contain exactly one instance of each of its objects, and these objects will all belong to the same conceptual row of the gsmpSessionTable.