Processing the sample generic resource resolution exit routine

When the sample exit routine receives a request to resolve a generic resource name, it processes the request. The sample exit routine does not select an application program network name; instead, it sets the network name field to 0.

During generic resource resolution, VTAM® selects either the name chosen by the work load manager or the name chosen by VTAM through session load balancing:

If the generic resource resolution exit is called and selects a valid resource name, this selected name is always used.
If the exit does not select a resource name or selects an invalid resource name, and the MVS™ work load manager was invoked and selected a valid name, then the name chosen by the work load manager is always used.
If neither the exit or the work load manager makes a choice, then the name that VTAM selects, based on session load balancing, is used.