Multiplex communications – Wide area network – Packet switching
Patent
1994-05-19
1995-07-04
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 302
Patent
active
054307287
ABSTRACT:
In LAN interconnect, it is necessary to perform route discovery to locate a destination device. A novel method of selecting designated source routing bridges and a new single-route broadcast scheme using those selected bridges are disclosed. The invention makes use of intelligent source routing bridges which connect LAN segments. In order to configure a single-route broadcast path to each connected LAN, a selection procedure is performed among source routing bridges according to the present invention to ensure that there is only one path between two connecting LAN segments. In one embodiment, a packet switching network is used as a WAN which interconnects many LAN segments by way of a virtual ring created in the WAN and the present invention chooses only one path between the individual LAN segment and the virtual ring.
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patent: 4901312 (1990-02-01), Hui et al.
patent: 4972409 (1990-11-01), Backes
patent: 5018137 (1991-05-01), Backes et al.
patent: 5088090 (1992-02-01), Yacoby
patent: 5144622 (1992-09-01), Takiyashu et al.
patent: 5150360 (1992-09-01), Perlman et al.
Cobban James A.
Cousineau Pierre
Ling Wing K.
Narayanan N. Anantha
Nguyen Chau T.
Northern Telecom Limited
Olms Douglas W.
Toyooka Yoshiharu
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