Multicast tree state replication

Details Multicast tree state replication Multicast tree state replication

2011-03-08

2011-03-08

Abelson, Ronald (Department: 2476)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S221000

Reexamination Certificate

active

07903545

ABSTRACT:
A network device may include a first memory to store a primary multicast tree state table for storing next-hop information for a multicast tree corresponding to a multicast stream; a second memory to store a secondary multicast tree, different than the primary multicast tree, state table for storing the next-hop information for the multicast tree corresponding to the multicast stream; a receiver to receive a data unit from a neighbor network device, the data unit including information regarding a next-hop in the multicast tree; and one or more processors. The one or more processors may update the primary multicast tree state table based on the information regarding the next-hop in the multicast tree, and update the secondary multicast tree state table, in response to the one or more processors updates the primary multicast tree state table, based on the information regarding the next-hop in the multicast tree.

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Bhattacharyya, An Overview of Source-Specific Multicast (SSM), Network Working Group, RFC-3569, The Internet Society (2003), 14 pages.

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