Research On Multicast Routing Architecture Based On New Vector Network

With the fast development of the computer network of which the function is more and more powerful, the way of communication in the network has been developed from one-to-one to one-to-multiple or multiple-to-multiple mode. So the research on multicast technology has become a significant problem in the field of network communication. Multicast is a way of communication in which the source node or the source host sends the same packet to the multiple destination nodes at the same time. The applications such as remote conference, interactive simulation, distributed content system and multi-user games require the multicast service very much.IP multicast that has been researched and developed for 20 years is made up of a complete multicast protocol stack. Even though it experienced long-term development, IP multicast doesn't achieved the anticipated success, which can be seen from Internet. On the one hand, Internet scarcely supports IP multicast service. So far, the multicast service has not covered the whole range of the Internet. On the other hand, the number of applications that base on the IP multicast in Internet can be counted on one's fingers. So IP multicast is developing slowly in comparison with other new application systems.This paper presents a method for multicast which is feasible in a new third-layer network called Vector Network by analyzing and using the property of this network. This method bases on the new way of address coding, and uses the characteristic of hierarchical routing architecture. As the path multicast data packets pass by, a Multicast Distribution Tree can be built by invoking Minimum Spanning Tree algorithm distrbutedly and recursively in this method. In terms of total cost, The multicast cost will be minimum along the Multicast Distribution Tree. Additionally, a new vector address format has been designed which has a dendriform structure. The expense of multicast can be decreased greatly by using this new vector address format. In addition, this new multicast routing architecture has been verified by using OPNET network simulation software and Visual Studio 6.0.