Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Patent
1995-11-06
1998-07-28
Safourek, Benedict V.
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
370232, 370236, H04L 1256
Patent
active
057870713
ABSTRACT:
A communication system comprises a plurality of nodes interconnected by links comprising a plurality of connections. The traffic between the nodes is set up by a reserved bandwidth service and/or a non reserved bandwidth service. The non reserved bandwidth service is controlled by a hop by hop backpressure mechanism. When the traffic entering a node exceeds a high threshold, the backpressure mechanism generates stop backpressure primitives in order to throttle the entering traffic. In case of congestion the mechanism is either able to selectively interuppt the connection contributing to the congestion without affecting the rest of the link traffic, or to globally stop all link traffic. Traffic can be resumed if traffic rates fall below the low threshold values.
REFERENCES:
patent: 5453981 (1995-09-01), Katsube et al.
patent: 5455826 (1995-10-01), Ozveren et al.
patent: 5633861 (1997-05-01), Hanson et al.
International Switching Symposium 1992, vol. 1 of 2, 25 Oct. 1992 Yokohama pp. 229-233, XP 000337649H.J. Chao `A General Architecture for Link-Layer Congestion Control in ATM Networks`.
IEEE Network: The magazine of Computer Communications, vol. 2, No. 1, Jan. 1988 New York US pp. 72-76 M. Gerla L. Kleinrock `Congestion Control in Interconnected LANs`, p. 73.
Basso Claude
Calvignac Jean
Orsatti Daniel
Verplanken Fabrice
International Business Machines
Safourek Benedict V.
Woods Gerald R.
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