Scalable crossbar matrix switching apparatus and distributed...

Details Scalable crossbar matrix switching apparatus and distributed... Scalable crossbar matrix switching apparatus and distributed...

2004-11-15

2009-02-17

Kizou, Hassan (Department: 2419)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

Reexamination Certificate

active

07492782

ABSTRACT:
A high speed and high capacity switching apparatus is disclosed. The apparatus includes: N input ports each of which for outputting maximum l cells in a time slot, wherein each of the N input ports includes N virtual output queues (VOQs) which are grouped in l virtual output queues group with n VOQs; N×N switch fabric having l2crossbar switch units for scheduling cells inputted from N input ports based on a first arbitration function based on a round-robin, wherein l VOQ groups are connected to l XSUs; and N output ports connected to l XSUs for selecting one cell from l XSUs in a cell time slot by scheduling cells by a second arbitration function based on a backlog weighed round-robin, which operates independently of the first arbitration function, and transferring the selected cell to its output link.

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Ghahramani, “Fundamentals of Probability”, 2000, Prentice-Hall, Second Edition, p. 369.

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