Method and apparatus for bandwidth management of aggregate...

Details Method and apparatus for bandwidth management of aggregate... Method and apparatus for bandwidth management of aggregate...

2005-09-09

2010-06-22

Nguyen, Steven H (Department: 2473)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S252000, C370S392000, C370S401000, C714S748000

Reexamination Certificate

active

07742420

ABSTRACT:
The present invention relates to a transmission device implementing a flow control mechanism for aggregate trunks. The transmission device can be implemented as a router that includes an input for receiving aggregate traffic streams, an output for releasing the aggregate traffic streams to a destination point and a control unit capable to regulate the rate of release of packets from the output. Specifically, the flow control operation effected by the control unit is dependent on receipt of acknowledgement messages issued at the destination point, each acknowledgement message confirming the receipt of one or more particular packets at the destination point. The control unit will continuously increase the packet sending rate until a packet is lost in the network between the transmission device and the destination point. On detection of packet loss, based on the lack of one or more corresponding acknowledgement messages from the destination point, the control unit will reduce the packet sending rate.

REFERENCES:
patent: 6252851 (2001-06-01), Siu et al.
patent: 6466985 (2002-10-01), Goyal et al.
patent: 6473425 (2002-10-01), Bellaton et al.
Chang K: “IP Layer Per-flow Queueing and Credit Flow Control” PH.D. Dissertation Jan. 1998, pp. 18-28, XP002146481.
Yang C-Q; Reddy Avs: “A Taxonomy for Congestion Control Algorithms in Packet Switching Networks” IEEE Network, vol. 9, No. 4, Jul. 1, 1995, pp. 34-45, XP000525690, New York.

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