Configuring the Network › SNA Considerations › Specify Pacing and Performance › Secondary Send Pacing (SSNDPAC)

Secondary Send Pacing (SSNDPAC)

Use Secondary Send Pacing to perform session pacing between the following:

• The SLU and the PLU when one‑stage pacing is used
• The session is with a link‑attached peripheral node or the session is with a locally attached node in a single‑domain environment or the session is an APPL‑to‑APPL session.
• The PLU and the boundary function of the VTAM to which the node is attached in a cross‑domain session with a locally attached device

  This session will use two‑stage pacing and refers to INBOUND (SLU‑to‑PLU) traffic only.

For one‑stage pacing, the SSNDPAC value is used as a pacing switch. Coding a 0 for this field indicates that no inbound pacing will occur. For two‑stage pacing, the SSNDPAC value in the logmode is used as the pacing specification for the first stage pacing (SLU to attaching VTAM). Specifying 0 as the SSNDPAC value in the logmode indicates that no inbound pacing will occur in the first stage. The VPACING value coded in the APPL statement is used to determine the pacing value for the second stage only. If this value is 0 or the parameter is omitted, then inbound pacing does not occur in the second stage. For more information, see the following figure.