ISC/IRC system and mode entry statistics

The ISC/IRC system and mode entry statistics area of the DFHSTUP listing is for a CICS® system using intersystem communication. This provides summary statistics for the CICS intercommunication facility.

Note: ISC/IRC system and mode entry statistics contain information about intersystem communication over SNA (ISC over SNA) and multiregion operation (MRO) connections. Information about IP interconnectivity (IPIC) connections is in IPCONN statistics.

The two types of intersystem communication, ISC over SNA and IPIC, are described in Communication between systems.