This example illustrates a sysplex of two systems in which a new application joins the transport class, TCNEW, and all other defaults in the COUPLExx parmlib member are taken. This ensures that message traffic for the new application is sent on its own dedicated signaling path and does not compete with other multisystem applications.

In this scenario, the sysplex PLEXOF2A consists of two MVS™ systems (SYSA and SYSB) on two processors. There is one group, NEWAPP, in the sysplex that requires special consideration. NEWAPP is assigned to its own transport class (TCNEW) in the COUPLExx parmlib member on each system in the sysplex.

Members of other groups on this system share signaling resources in the DEFAULT transport class.

You might consider using this configuration when you plan to use an application and do not want other multisystem applications competing with it for signaling resources.