Packet switch and method of scheduling the same

Details Packet switch and method of scheduling the same Packet switch and method of scheduling the same

2007-06-05

2007-06-05

Nguyen, Chau (Department: 2616)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S360000

Reexamination Certificate

active

09795191

ABSTRACT:
A packet switch includes (a) a plurality of inputs into each of which a packet is input, (b) a switch which receives the packet from the input and switches an output through which the packet is transmitted, and (c) a scheduler which controls the switch. The scheduler (103) includes (c1) a shuffler (201) which shuffles an order of precedence in a first request transmitted from the input to transfer the packet, (c2) a schedule algorithm (202) which determines the output, based on the first request having the order of precedence having been shuffled by the shuffler, and produces a second request to transfer a packet which second request is associated with the first request having the order of precedence having been shuffled by the shuffler, and (c3) a re-shuffler (203) which turns an order of precedence of the second request to be identical with the order of precedence in the first request as found before having been shuffled by the shuffler, and returns the thus turned order of precedence back to the input.

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