The logon manager functions as a stand-alone VTAM® application and, thus, can be stopped independently of VTAM. The logon manager MODIFY STOP command stops logon manager processing. For more information about the logon manager operator commands, see z/OS Communications Server: SNA Operation. When the command is issued, the logon manager shuts down its subtasks, closes its ACBs, and returns control to MVS™. Current sessions are allowed to end, but new sessions are not permitted.

The VTAM HALT, HALT QUICK, and CANCEL commands terminate the logon manager, as they do any VTAM application.