Closing interregion communication (IRC)

You can close interregion communication (IRC) by using the CEMT SET IRC CLOSED command while CICS® is running.

Note:
Before IRC can close, all pipes (sessions) of the external call interface must have been closed by the batch programs. For information about the external CICS interface, see the CICS External Interfaces Guide.

Related tasks
Operating CICS in a multiregion environment
Enabling MRO
Opening interregion communication (IRC)
Defining MRO connections
Adding new MRO connections while CICS is running
Changing MRO connections while CICS is running
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