VTAM® handles the tasks of session establishment and termination for LU 6.2 sessions for those application programs that use LU 6.2 support. Application programs explicitly issue conversation establishment and termination requests. VTAM automatically sets up and takes down sessions in response to these requests, according to the session limits the application programs have requested and negotiated. The application program's main involvement with session management is in establishing limits on the number of sessions that it can have with another LU in the network.