On-Demand Branching Multicast
按需分枝组播

After analyzing and summarizing the main current research outcomes of IP multicast routing, a multicast routing algorithm called on-demand branching multicast is proposed. On-Demand branching multicast uses a new multicast tree maintenance method, in which the tree is maintained only by partial nodes or key nodes. That is different from the traditional methods in which the tree is maintained by all the nodes on the tree, and so as to save the Internet resources.