ONC RPC remote procedures and CICS programs

In CICS® ONC RPC, the CICS programs are identified by a 4-tuple.

When a client request arrives, the CICS program chosen to service it is the one associated with the 4-tuple just described. Figure 34 shows a state of CICS ONC RPC in which five 4-tuples are associated with three CICS programs.

Figure 34. Remote procedures and CICS programs
 This diagram shows the following 4-tuples: 24127AC0/5/1/U and 24127AC0/5/1/T associated with PROGA, CE00457F/3/1/U associated with PROGB, and CE00457F/3/1/T and CE00457F/3/2/T associated with PROGC.

The program numbers are given in hexadecimal. The protocols are U for UDP and T for TCP.

How you set up and control the relationship between 4-tuples and CICS programs is described in Configuring CICS ONC RPC using the connection manager.

Where the CICS program might be

The CICS program might be in one of three places:

The CICS programs can reside on any CICS system accessible by means of DPL from the CICS region running CICS ONC RPC. DPL operation is described in the CICS Intercommunication Guide.

Related concepts
ONC RPC concepts
CICS ONC RPC transactions
CICS ONC RPC user-replaceable programs
CICS ONC RPC control flow
CICS ONC RPC data flow
Related tasks
Setting up CICS ONC RPC
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