VTAM considerations

  • APPL definition

    The X.25 NPSI server requires AUTH=(ACQ) and PARSESS=YES in the VTAM® APPL definition.

  • SWNET definition for switched circuits
    • The value that is specified for MAXDATA for the PU must be at least 10 bytes greater than the value specified for the maximum packet size on the BUFFERS statement in the X.25 NPSI server configuration data set.
    • SSCPFM=USSNTO and DISCNT=(YES,F) are necessary.