CEMT SET IRC

Open or close the interregion communication (IRC) facility.

In the CICS Explorer, the Regions operations view provides a functional equivalent to this command.

Description

New MRO connections can be installed without first closing IRC. However, if you want to modify existing MRO connections, IRC must be closed using the SET IRC CLOSED command. For example:

   CEMT SET IRC CLOSED
   CEDA INSTALL GROUP(groupname)
   CEMT SET IRC OPEN

Syntax

Press the Clear key to clear the screen. There are two ways to start this transaction:

Type CEMT SET IRC (or suitable abbreviations for the keywords). The resulting display lists the current status, similar to that obtained by using the CEMT INQUIRE IRC command. You can tab to the highlighted field and overtype it with the required value.
Type CEMT SET IRC (or suitable abbreviations for the keywords), followed by the attribute setting that you want to change. For example, cemt s ir o initializes interregion communication.

Typing ? at the beginning of either the first or second line gives a syntax prompt. Resetting the values takes effect immediately.

CEMT SET IRC

Options

CLOSED: Interregion communication for this CICS® system is terminated after all tasks using IRC sessions have terminated normally.
IMMCLOSE: All tasks using IRC sessions are to be abended when they next try to use the session. Interregion communication is terminated when all tasks that were using IRC have been abended or have terminated normally.
OPEN: Interregion communication for this CICS system is initialized. This allows connections to be established between this system and other systems, including DL/I batch regions and non-CICS client programs using the external CICS interface (EXCI). You can control the availability of individual connections with the INSERVICE|OUTSERVICE settings on the connection names.