Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Patent
1997-06-12
2000-07-18
Rao, Seema S.
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
370253, 370397, 370465, H04L 1256
Patent
active
060917083
ABSTRACT:
A traffic shaper that feeds cells into an asynchronous-transfer-mode virtual-path-switching network has two queues per virtual path: a first queue providing a regular class of service, and a second queue providing a variable class of service. Cells are taken from the first queue in preference to the second queue, combined traffic from the two queues is kept within a peak cell rate, and traffic from the second queue is kept within an allowed cell rate. Forward resource-management cells are inserted at certain intervals in the cell flow taken from the second queue, and the allowed cell rate is adjusted according to backward resource-management cells received in reply. A third queue for priority cell traffic, limited to a priority cell rate lower than the peak cell rate, may also be provided.
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OKI Electric Industry Co., Ltd.
Rao Seema S.
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