Steps for diagnosing CICS socket interface not initialized

Determine why the CICS® socket interface did not initialize.

Follow these steps:

1. Issue the EZAO,START,CICS command, and then check that the interface initializes.
   1. If the interface initializes, check that EZACIC20 is in the Program Load Table (DFHPLT).

      Putting EZACIC20 into the PLT allows the CICS Socket Interface to initialize on CICS address startup. See z/OS Communications Server: IP CICS Sockets Guide for more information.

   2. If EZACIC20 is defined in the DFHPLT, check the message logs for failures.
   3. If there are no messages, then start CICS with an auxiliary trace active, IP CICS Sockets CICS tracing enabled, and then request an SVC dump of CICS.
   4. Call the Support Center.
2. Verify that the socket Resource Definition Online (RDO) definitions have been properly installed and that the correct data sets are in the STEPLIB and DFHRPL concatenations.