Method of broadcasting data by means of a data train

Details Method of broadcasting data by means of a data train Method of broadcasting data by means of a data train

1994-10-20

1996-01-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 855, 370 8515, 395181, H04L 12437

Patent

active

054835208

ABSTRACT:
A method of transmitting data between a set of data processing nodes interconnected by a communications network. Each node broadcasts data to the other nodes by causing a train of such data to travel over the network around a looped circuit or "ring" passing through each of said nodes, each node in the ring having a predecessor and a successor. A counter is provided in the data train, and on receiving a data train sent by its predecessor, each node recovers the counter from the received data train, increments the counter, and dispatches to its successor a new data train including the counter as incremented. It also stores the new data train with the incremented counter in its memory so that it is possible to implement a simple fault recovery procedure in the event of one of the nodes becoming faulty.

REFERENCES:
patent: 4709365 (1987-11-01), Beale et al.
patent: 5003533 (1991-03-01), Watanabe
patent: 5283783 (1994-02-01), Nguyen et al.
R. Abraham et al, "Data Loop Architecture Using Transmit-Receive Message Pairs", IBM Technical Disclosure Bulletin, vol. 19, No. 1 Jun. 1976, pp. 146-151.
French Search Report FR 9312660.

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