ATM switch with rate-limiting congestion control

Details ATM switch with rate-limiting congestion control ATM switch with rate-limiting congestion control

2005-08-23

2005-08-23

Pham, Chi (Department: 2663)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S413000, C370S235000

Reexamination Certificate

active

06934253

ABSTRACT:
An ATM switch with rate-limiting congestion control has a plurality of input ports, a plurality of output ports operatively associated with one or more data buffers, an output control and a switch fabric for switching data units from any of the input ports to any of the output ports on virtual connections. The ATM switch imposes and enforces transmission rate-limiting policies against the virtual connections when the backlog of data units for delivery to a particular output port reaches a particular level. The ATM switch may be arranged to exempt high priority data units from the imposed rate limitations and has a means to lift the rate limitations when the backlog has been sufficiently reduced.

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ATM Forum Technical Committee TrafficeManagement Specification, Version 4.0, af-tm-0056.000, Apr. 1996.

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