Step 3: Define the SNALINK application to VTAM

In dual mode, SNALINK opens 2 SNA sessions for each remote logical unit with which it communicates: one for sending and one for receiving. In single mode, SNALINK opens one full-duplex session.

Figure 1 is an example of a typical VTAM® APPL statement for SNALINK. The application identifier (SNALKB03 in this example) must match the APPLID specified in the SNALINK cataloged procedure parameters.

Figure 1. APPL statement for SNALINK

SNALKB03  APPL ACBNAME=SNALKB03,                                       X
               AUTH=(ACQ,VPACE),                                       X
               SRBEXIT=YES,                                            X
               EAS=12,                                                 X
               PARSESS=YES,                                            X
               SONSCIP=YES,                                            X
               VPACING=0

Requirement: SRBEXIT must be YES.

See z/OS Communications Server: SNA Resource Definition Reference more information about defining VTAM applications.