MARS load analysis of streaming service on IP multicast over ATM

The Internet is now a widely used network and is expected to accommodate many kinds of services in an integrated manner. One of these promising services is a streaming service such as video or radio streaming. In the Internet, this streaming service should be supported by multicast communications, i.e. IP multicast, in order to reduce total bandwidth necessary for distributing streaming programs. In future network infrastructure, ATM technology should be implemented in a backbone network. So, in order to integrate opposite-side two network architecture. IP and ATM, IP Multicast over ATM technology is proposed in IETF. In this technology, Multicast Address Resolution Server (MARS) is used for address resolution generally. On changing group membership, MARS receives control message informing membership change from ATM end points, edge routers. Multicast group may grow up to thousands of recipient in the case of streaming service. Overload of MARS due to message concentration is one of the most serious problems for streaming service in the Internet. In this paper we analyze load for MARS brought by control message according to multicast group management for streaming service. With numerical results, we discuss about suitable network configuration for scalable streaming service.