In telecommunication, a common management information service (CMIS) is a service that specifies the service interface to the Common Management Information Protocol (CMIP).

Note: To transfer management information between open systems using CMIS/CMIP, peer connections, i.e., associations, must be established. This requires the establishment of an Application Layer association, a Session Layer connection, a Transport Layer connection, and, depending on supporting communications technology, Network Layer and Link Layer connections.

Source: from Federal Standard 1037C and from MIL-STD-188