VTAM® application programs that are acting as PLUs can terminate the session by issuing the CLSDST macroinstruction to send an UNBIND request to the SLU.

Programs that are acting as SLUs can terminate the session by issuing the TERMSESS OPTCD=UNBIND to send an UNBIND request to the PLU. (If you use TERMSESS OPTCD=UNBIND, you must specify the CID in either the ARG or NIB operand. If you use the NIB operand, you cannot use NAME.)

SLU application programs can issue a TERMSESS macroinstruction to send a Terminate request (Orderly or Forced) to the SSCP. If an application program closes its ACB while it still has sessions, those sessions are terminated by sending a Terminate request (Cleanup) to the SSCP.