Describes a proposed Multimedia On-Demand (MMOD) system architecture that will support MMOD network services and will have the ability to solve presentation synchronization problems caused by either transmission line delay or any mismatch between the data transmission rates or the different parts of the system. (Contains nine references.)…

Multicasting is a necessity for a broadband metro-area-network; however security problems exist with current multicast protocols. A stateful multicast access control mechanism, based on MAPE, is proposed. The architecture of MAPE is discussed, as well as the states maintained and messages exchanged. The scheme is flexible and scalable. (Author/AEF)