Using APPC to Communicate with Other Systems › Define APPC Links › APPC Table Requirements

APPC Table Requirements

Although there are four APPC tables and each supports many parameters, it is not necessary to define all of the tables or parameters. In most cases the system provides default values. The following gives an indication of table definition requirements:

• Transactions for which both ends of the conversation run in the same domain, need only a TCT definition to define for each transaction the name of the NCL procedure that will service the request.
• LU6.2 connections that use the default option set, only need TCT and DLT definitions. This is sufficient to authorize single session connections to service conversations requiring no security and no data mapping support, and is appropriate for typical communication between your product region and work stations running APPC.
• LU6.2 connections that use advanced options (for example, specific logmode) need all four table definitions. Such advanced options are likely to be required to enable sophisticated use of APPC between one domain and other domains or CICS systems.