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 a description of all attributes for this view, refer to the CICS Transaction Server for z/OS, Version 3 Release 2 documentation.