Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-05-13
2008-05-13
Nguyen, Chau (Department: 2619)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S395500, C370S401000, C370S432000
Reexamination Certificate
active
07372853
ABSTRACT:
According to one embodiment of the invention, a method for multicasting data packets is provided. The method includes determining that a data packet is to be multicast from an intermediate node to a plurality of destination nodes in a branch of a point-to-multipoint MPLS connection tree. The intermediate node has a plurality of connection interfaces. The method also includes establishing only one MPLS tunnel in response to the determination. The only one MPLS tunnel is for carrying the data packet to be multicast and established between a node and the intermediate node. The method also includes connecting each destination node to the intermediate node through a particular one of the connection interfaces. The method also includes receiving the data packet from the node at the intermediate node through the only one MPLS tunnel. The method also includes forwarding the data packet to the plurality of destination nodes through the connection interfaces identified in a multicast table.
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Bardalai Snigdho C.
Harbin Edward Alton
Sharma Shantnu
Baker & Botts L.L.P.
Duong Duc
Fujitsu Limited
Nguyen Chau
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