When executing the following facilities, TP1/Client uses a specific TP1/Server as a gateway.

• User authentication facility
• Remote procedure call (RPC)
• RPC without the name service
• RPC for allocating a process that manages transactions
  RPC: Remote Procedure Call
  

Specify the gateway TP1/Server using DCHOST in the client environment definition or using a function argument when requesting user authentication.

The following figures show how TP1/Client operates.

Figure 1-2 TP1/Client operation (1/2)

Figure 1-3 TP1/Client operation (2/2)