Broadband switching network

Details Broadband switching network Broadband switching network

1994-06-03

1996-04-02

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370 942, H04L 1256

Patent

active

055047440

ABSTRACT:
A broadband switching network is shown having a plurality of interconnected switching units arranged to transfer cells asynchronously therebetween. A switch control establishes connections for the asynchronous transmission of these cells between ports. A bandwidth control detects the rate at which cells are supplied to an input port; and, in response, requests switch control to allocate bandwidth to the connection. When bandwidth has not been allocated, received cells are downgraded or rejected by a usage control device. The usage control device only allows high priority cells to remain as such when bandwidth has been allocated. The network facilitates logical connections to be established without dial-up procedures. However, customers may be charged in terms of their actual usage made of the network.

REFERENCES:
patent: 5271005 (1993-12-01), Takase et al.
patent: 5289462 (1994-02-01), Ahmadi et al.
patent: 5291481 (1994-03-01), Doshi et al.
Crocette et al, IEEE INFOCOM '91, vol. 3, Apr. 7, 1991, Bal Harbour, pp. 1145-1150 "Bandwidth Advertising for MAN/ATM Connectionless Internetting".
Saito et al, Transactions Of The Institute Of Electronics, Information And Communications Engineers, vol. E74, No. 4, Apr. 1991, Tokyo, pp. 761-771, "Traffic Control Technologies in ATM Networks".
Tranchier et al, International Switching Symposium, vol. 2, Oct. 1992, Yokohama, pp. 7-11, "Fast Bandwidth Allocation in ATM Networks".

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