2.1.1 ATMI Client Request/Response to CICS/ESA DPL

Figure 2-1 DMCONFIG File Entry

1. ATMI client invokes toupsrv service.
2. The toupsrv service issues tpcall for SIMPDPL, which is advertised in the DM_REMOTE_SERVICES section of the DMCONFIG file.
3. Host mirror transaction starts TOUPDPLS program and passes idata buffer contents for processing.
4. The TOUPDPLS program processes data.
5. The CICS/ESA server returns the commarea into the client’s odata buffer.