Node error program (DFHZNEP)

You can specify your own processing for z/OS® Communications Server errors in a node error program (NEP). You can use the sample NEP supplied, change the sample, or write your own.

The NEP is entered once for each terminal error; therefore it should be designed to process only one error for each invocation.

In some circumstances, the Communications Server communication system errors can be passed to an application program. If you issue an EXEC CICS® HANDLE command with the TERMERR condition specified, the application program can decide on the action to take in response to the error condition. The TERMERR condition is raised if the DFHZNEP program, if you have one, schedules an ABTASK action (ATNI abend) for a terminal error while the task is attached. It is raised for the current or next terminal control request.