Method for implementing multicast

Details Method for implementing multicast Method for implementing multicast

2006-10-17

2010-06-29

Phunkulh, Bob A (Department: 2477)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S401000, C370S432000, C709S238000

Reexamination Certificate

active

07746859

ABSTRACT:
A method for implementing multicast in the MAC in MAC network, which method enables the operator's backbone network device to support the multicast copy ability based on the private network user, and allows the public network, which supports the MAC in MAC Layer 2 backbone network, to have the full multicast ability, the inventive method adds into the PBB the correspondence of the multicast address between the private network and the public network as well as the multicast forwarding tables in each network equipments, copies and sends downward the multicast messages stage by stage, so that the multicast messages are sent downward in accordance with the typical multicast tree structure, thereby avoiding the huge waste of the bandwidth due to the multicast copy.

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