VTAM and NCP Parameters

This step explains how to set up VTAM and NCP parameters for IBM® Connect:Direct® operation. You must perform the following evaluations to prepare for IBM Connect:Direct operation:

  • Determine correct RU size for SNA sessions.

    The VTAM RUSIZES parameter is located in the VTAM MODEENT macro. It specifies the transmission buffer size and can affect IBM Connect:Direct operation. See Selecting RU Size for SNA Sessions that follows.

  • Determine the effect of NCP parameters.

    Several parameters located in the NCP macros used during NCP generation (GEN) can also affect IBM Connect:Direct operation. See Effects of NCP Parameters.