How to choose a network driver

Open ClientConnect supports concurrent use of multiple network drivers, providing additional flexibility and ease of installation for sites configured to run mixtures of SNA and TCP/IP.

NoteDynamic network driver support is a new feature in Open ClientConnect version 4.0.

The network drivers can be invoked from the same Open Client/Open Server common code base. The appropriate network driver is loaded dynamically at the time the program executes.

You must use the SYGWDRIV macro to define the network drivers to be used with Open ClientConnect and Open ServerConnect. For each operating environment (CICS and MVS), the default SYGWXCPH member provided contains the SYGWDRIV macro definitions for all the supported network drivers pertinent to the technology. The person installing Open ClientConnect should edit the appropriate SYCTCUST member to comment-out the drivers that your site does not intend to use.

This section provides an overview of network communication, describes general criteria for choosing a driver, and explains how to choose between a CPI-C/LU 6.2 and a TCP/IP driver.