Method and arrangement in a packet switch

Details Method and arrangement in a packet switch Method and arrangement in a packet switch

2003-10-21

2008-10-07

Duong, Frank (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Reexamination Certificate

active

07433305

ABSTRACT:
A system and method are disclosed for switching a data flow of information packets intended for paths between a respective sending and receiving entity, the method includes buffering the packets from the paths in a queue; halting a sending entity on congestion of the queue; storing the halt condition in a switch state; noting the individual portions that different of the paths occupy in the queue; halting the sending entity for the path occupying the individually greatest portion of the queue; storing the halted path in a free one of the switch states including storing its bandwidth; successively updating the respective bandwidth of halted paths as the queue is repeatedly congested; determining an older part of the states; and purging the state for a path having the smallest bandwidth in said older part of the states.

REFERENCES:
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patent: 7012889 (2006-03-01), Turner et al.
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Tamir et al, High-Performance Multi-Queue Buffers for VLSI Communication Switches, IEEE, pp. 343-354, 1998.

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