Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-09-27
2005-09-27
Phunkulh, Bob A. (Department: 2661)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S432000, C709S249000
Reexamination Certificate
active
06950431
ABSTRACT:
In an information network having a complex structure made of a logical network and also a physical network, such an information network is constituted so as to realize a multicast service capable of not increasing an amount of a network traffic larger than a necessary traffic amount. This information network contains a plurality of information relay apparatuses for relaying information among a plurality of VLANs (Virtual Local Area Networks), a network for connecting these information replay apparatuses to each other, a multicast server and a plurality of terminals, belonging to an arbitrary VLAN of these VLANs. A multicast relay processing unit, a multicast address learning processing unit, and a multicast learning table are provided in each of these information relay apparatuses so as to register a predetermined relay destination of a multicast communication. Even in such a case that the VLAN structure is made complex irrespective of the physical network structure, it is possible to distribute such a multicast packet suitable for the physical network structure.
REFERENCES:
patent: 5684800 (1997-11-01), Dobbins et al.
patent: 5831975 (1998-11-01), Chen et al.
patent: 5946308 (1999-08-01), Dobbins et al.
patent: 6094435 (2000-07-01), Hoffman et al.
patent: 6115378 (2000-09-01), Hendel et al.
patent: 6147995 (2000-11-01), Dobbins et al.
patent: 6581166 (2003-06-01), Hirst et al.
Nozaki Shinji
Sawada Sunao
Watanabe Ken
Watanuki Tatsuya
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Phunkulh Bob A.
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