The ISC/MRO Connection Definitions (CONNDEF) view displays remote systems that a CICS® system communicates with using intersystem communication (ISC) or multiple region operation (MRO).
If you select a CICSplex in the CICSplex Explorer view, all connection definitions in the CICSplex are displayed. If you select a single CICS region, only connection definitions in that CICS region are displayed.
For more information about the attributes and actions for this resource, see the Resource table description in the CICS Transaction Server for z/OS® documentation.