CMIS P++ - EXTENSIONS TO CMIS/P FOR INCREASED EXPRESSIVENESS AND EFFICIENCY IN THE MANIPULATION OF MANAGEMENT INFORMATION/

CMIS/P is the OSI systems management service and protocol used as the base technology for the telecommunications management network. It is a generic object oriented protocol that provides multiple object access capabilities to managed object clusters administered by agent applica tions. Its navigation and object selection capabilities rely on traver sing containment relationships. This is restrictive because informatio n models for emerging broadband technologies (SDH/SONET, ATM) exhibit various other relationships. In this article we present extensions to the CMIS service that provide a richer access language and show how th ese extensions con be supported by corresponding extensions to the CMI P protocol. These extensions allow traversal of any object relationshi p and filtering out objects at any stage of the selection process. CMI S++ provides much greater expressive power than CMIS, while CMIP++ sup ports the remote evaluation of the corresponding expressions. minimizi ng the management traffic required for complex management information retrieval, these extensions follow an incremental approach, starting f rom a version compatible with the current standard and gradually addin g sophisticated Features. The applicability and importance of the prop osed concepts is demonstrated through an example from SDH management, while we also discuss implementation considerations.