Configuring fast path routing

 

If you want fast communication, you can configure OptiConnect fast path routing. However, the fast path method does not support two-phase commit.

The fast path method uses a special device description of QYCTSOC. When an Advanced Program-to-Program Communication (APPC) conversation is directed at this device, the device driver redirects the conversation through the OptiConnect bus, bypassing most of the standard distributed database management (DDM), Distributed Relational Database Architecture™ (DRDA®), and APPC code.

The QYCTSOC device description is created during the OptiConnect software installation, but it always remains varied off. This device description is necessary and must not be deleted.

To route data requests over OptiConnect by using the fast path method, specify the QYCTSOC keyword in the device description parameter of a DDM file. You can use either the Create Distributed Data Management File (CRTDDMF) command or the Change Distributed Data Management File (CHGDDMF) command to add this information.

To create a new DDM file, follow these steps:

  1. For the remote location (RMTLOCNAME) parameter, specify the name of the target system where the request will be performed. You can use the Display Network Attributes (DSPNETA) command to display the system name.

  2. After you enter the rest of the information, press F10 (Additional parameters) and enter QYCTSOC for the device description.

    OptiConnect does not specifically use the other parameters on the CRTDDMF command. However, make sure that you have specified either *YES or *NO for the share open data path (SHARE) parameter.

    When you specify QYCTSOC for the device, the RMTLOCNAME parameter is limited to a valid system name.

To change an existing DDM file, follow these steps:

  1. Enter the name of the DDM file and the library, and then press Enter.

  2. For the RMTLOCNAME parameter, specify the name of the target system where the request will be performed, and then press F10.

  3. On the Additional Parameters display, enter QYCTSOC for the device description.

    OptiConnect does not specifically use the other parameters on the CHGDDMF command. However, make sure that you have specified either *YES or *NO for the SHARE parameter.

OptiConnect, by default, accepts any values in the mode (MODE) parameter of a DDM file. However, if you want OptiConnect agent jobs to start with the user profile specified in the QYYCDTSU job description, use QYCTSOC in the MODE parameter. Any other value in the MODE parameter causes the OptiConnect agent jobs to start with the user profile and the job description that initiated the DDM conversation.

 

Parent topic:

Configuring OptiConnect

Related concepts
Distributed data management Using the mode table

Related tasks
Configuring extended function path routing
Related reference
Change Distributed Data Management File (CHGDDMF) command Create Distributed Data Management File (CRTDDMF) command Display Network Attributes (DSPNETA) command