System and method for hierarchical multicast routing in atm networks

摘要: The present invention extends the PNNI protocols to support hierarchical multicast routing and signaling for ATM networks. utilizes an extension a core-based tree algorithm. Instead of single core node, nodes are maintained in each peer-group at level hierarchy. advantage this is that one node not overloaded. Additionally, increases fault-tolerance because there no points failure. As would be understood, highly scaleable nature PNNI. In addition, scheme supports multiple senders dynamic membership changes group. Quality service requirements can negotiated during connection setup guaranteed course connection. Though some additional topological information has flooded peer-groups compute efficient routes, overheads management minimal. built incrementally cost comparable Steiner Tree computed using standard heuristics.