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How to Run TI over SNA (APPC/LU 6.2)

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If you have a distributed network, use Transaction Integrator (TI) over an SNA (APPC/LU 6.2) network connection to take advantage of its support for two-phase commit (2PC) in ACID (atomic, consistent, isolated, and durable) transaction processing. To support ACID transactions, your COBOL transaction program (TP) must support Sync Level 2. The TCP/IP protocol has no default support for 2PC, so TCP/IP is not appropriate in a distributed network.

To run a TI application over an SNA network

  1. Configure the mainframe (CICS or IMS) for SNA, and establish a connection with your Windows-based Host Integration Server computer.

  2. Install the COBOL transaction programs within the CICS or IMS region that receives TI-initiated calls.

  3. Define an appropriate SNA remote environment for the CICS or IMS region that receives TI-initiated calls.

  4. Build the TI component with a method for each transaction in the TP.

  5. Deploy the TI component in a COM+ application to create a TI Automation server.

    Run the client application that calls the new TI Automation server to automate the TP.

See Also

How to Run TI Over TCP/IP
Windows-Initiated Processing Overview