Scalable IP multicast with efficient forwarding cache

Details Scalable IP multicast with efficient forwarding cache Scalable IP multicast with efficient forwarding cache

2007-12-04

2007-12-04

Gelin, Jean (Department: 2617)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S238000, C370S256000, C370S342000, C370S390000, C370S432000, C709S239000, C709S240000, C709S241000, C709S242000

Reexamination Certificate

active

10109585

ABSTRACT:
A method and apparatus in a multicast transmission system for routing packets including a scalable architecture that supports QoS. Redundant state information is minimized in the MOSPF multicast forwarding cache of each router in the communications system, thereby rendering MOSPF considerably more scalable. In a particular embodiment, cache redundancy is minimized by using a class of graph compression algorithms to solve a graph compression problem. In another embodiment, the forwarding cache is further consolidated by separating state information pertaining to individual source routers in a multicast group from state information pertaining to the entire multicast group.

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