High Quality Content by WIKIPEDIA articles! The Common Management Information Service (CMIS) is the service interface specified in ITU-T Recommendation X.710, ISO/IEC International Standard 9595 that is employed by OSI network elements for network management. It defines the service interface that is implemented by the Common Management Information Protocol (CMIP) as specified in ITU-T Recommendation X.711, ISO/IEC International Standard 9596-1. CMIS is part of the Open Systems Interconnection (OSI) body of international network standards.