If the NIB is specified and if it contains a network identifier in ISTNIB, the network identifier is used along with the LU name in NIBSYM to create a network-qualified name that represents the name of the LU whose sessions are to be terminated. However, if APPC=YES, the sessions terminated do not include LU 6.2 sessions controlled by VTAM®.

If no NIB is supplied, the RPLARG contains the CID of the one and only session to be terminated.

If the application program is specified with PARSESS=YES and a NIB is supplied, and if NIBCID in not equal to zero, NIBCID contains the CID of the one and only session to be terminated.

If the application program is specified with PARSESS=YES and a NIB is supplied, and if NIBCID is equal to zero, all sessions to the SLU or SLUs specified in NIBSYM are to be terminated. This can include sessions to multiple networks. However, if APPC=YES, the sessions terminated do not include LU 6.2 sessions controlled by VTAM.