Source routing transparent bridge

Details Source routing transparent bridge Source routing transparent bridge

1991-02-21

1994-01-18

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 943, 34082502, H04L 1240

Patent

active

052804801

ABSTRACT:
A bridged communications network includes source routing transparent (SRT) bridges which forward frames that are structured in accordance with a source routing architecture and frames that are structured in accordance with a transparent bridging architecture. Each SRT bridge examines a received frame to determine its type. If the frame is a bridge protocol data unit (BPDU) frame, it is used to set the bridge in a forwarding or blocking state. Any non-BPDU which carries a routing information indicator (RII) bit set to a logical "1" are processed by a source routing function device which is provided in the SRT bridge. If the RII bit is set to logical "0", the frame is processed by a transparent bridge function device which is also provided in the SRT bridge.

REFERENCES:
patent: 4706081 (1987-11-01), Hart et al.
patent: 5018133 (1991-05-01), Tsukakoshi et al.
patent: 5058109 (1991-10-01), Goldberg et al.
patent: 5086428 (1992-02-01), Tsukakoshi et al.
patent: 5088090 (1992-02-01), Yacoby
patent: 5111453 (1992-05-01), Morrow

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