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Communications Definitions

This section describes the definitions you need to make to enable communications. To create the necessary definitions you use the SysC page in ESMAC: from the Server page, click the Services dropdown in the Resources group in the left-hand menu, click By type, then click SysC. You see the list of existing SysC definitions. Click SysC in the New panel of buttons at the bottom of the page.

You must set the following fields:

Name The name of the target system: this is also the value you enter in SYSID when you define a remote transaction
MF Node The text host name or dotted decimal address of the target server
MF Port The decimal value of the port that the target server listens on
Net Name The name of the target enterprise server or CICS region
Session Max The maximum number of send sessions

You need a connection definition for the enterprise server that is initiating the conversation. If you create a connection definition in both enterprise servers and both servers try to initiate the connection, MSS resolves the contention.

If you specify the home enterprise server as the target enterprise server (that is, Net name is the same as the name of the current enterprise server), MSS ignores the entry. This is useful because it enables a number of servers to share a single group that specifies the connections for all the regions.

You also need to add a listener for Intersystem Communication to each enterprise server that uses ISC. For more information see the section Common Configuration Tasks.

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