Packet network and method for congestion avoidance in packet net

Details Packet network and method for congestion avoidance in packet net Packet network and method for congestion avoidance in packet net

1993-04-27

1995-03-21

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 17, 370 60, 370 79, 370 941, H04J 316

Patent

active

054003296

ABSTRACT:
Packet transfer is controlled by using an acceleration rate of packet transfers or by using a packet transfer rate acceleration ratio to predict that congestion will occur at a prescribed time in the future. Congestion avoidance in packet integrated networks is thereby achieved in a network having both variable rate terminal nodes and fixed rate terminal nodes. A future packet transfer rate is predicted in a congestion prediction circuit on the basis of a pre-established upper limit for the packet transfer acceleration or acceleration ratio. When it is predicted that the packet transfer rate will exceed a permissible value, a congestion prediction signal is output or a rate increase request indication is deleted. The invention prevents packets from being discarded in the packet network, allows buffer memory capacity of nodes in the network to be decreased, and avoids the generation of new packets when signal congestion is predicted.

REFERENCES:
patent: 4769811 (1988-09-01), Eckberg, Jr. et al.
patent: 4896316 (1990-01-01), Lespagnol et al.
patent: 5014265 (1991-05-01), Hahne et al.
patent: 5042027 (1991-08-01), Takase et al.
patent: 5193151 (1993-03-01), Jain

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