Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2004-12-29
2009-10-20
Moe, Aung S (Department: 2416)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S432000, C370S466000
Reexamination Certificate
active
07606228
ABSTRACT:
There are provided a home gateway system providing an optical communication packet data interface function and a home broadcast service providing method using the same. The home gateway system is constructed to include a network processor having two Ethernet interfaces connected to a system control processor of a home gateway and an Ethernet switch having an Ethernet multicast traffic processing/IGMP snooping function based on an Ethernet L2 multicast MAC table to thereby simultaneously provide a broadcast service such as a CATV broadcast service, and an Internet data service to a plurality of hosts in a home. In case of a broadcast service, the home gateway system converts a broadcast stream into an IP multicast packet and then processes the broadcast IP multicast packet by an L2 multicast function of an Ethernet switch, thereby making it possible to directly transmit the broadcast IP multicast packet to a host without the help of the control processor.
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(IGMP snooping: a VLAN-based multicast protocol, Jun Wang; Limin Sun; Xiu Jiang; ZhiMei Wu, High Speed Networks and Multimedia Communications 5th IEEE International Conference on Jul. 3-5, 2002 pp. 335-340,).
Choi Chang Sic
Jeong Youn Kwae
Park Wan Ki
Electronics and Telecommunications Research Institute
Haile Awet
Lowe Hauptman & Ham & Berner, LLP
Moe Aung S
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