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- 1-Towards Building Manageable Multimedia Network Services

The paper addresses the problem of designing and realizing manageable multimedia services. We introduce a generic object model which includes a set of cooperating objects that can be customized for a particular service and management requirements. These objects define the interaction between the service delivery and the service management systems and cover the aspects of instantiation of a service session, control of a session by the user, and management of sessions by the operator. By applying this model to the design of a multicast service, we enable the management system to monitor and control multicast sessions. To validate our approach, we have implemented the multicast service and the management functions on a high-performance emulation platform and on a broadband testbed. Finally, we argue that our model can be used to investigate designs for scalable and effcient systems that allow to control the cost of management.