Method to operate a crossbar switch

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United States of America Patent

PATENT NO 7978690
APP PUB NO 20080247411A1
SERIAL NO

12079854

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method is described to operate a crossbar switch comprising a crossbar fabric with N sending and M receiving ports, with port cards connected to at least one sending and/or receiving port each of the crossbar fabric, said crossbar switch further comprising a control unit connected with the port cards via discrete control channel links, wherein C ports are clustered on a single receiving port card so that such a receiving port card in a single time-step can receive up to C data cells from C sending port cards simultaneously. According to said method the control channel links are used to relay up to C acknowledgements between at least one receiving port card and at least one sending port card.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abel, Francois G Rueschlikon, CH 9 89
Gusat, Mircea Langnau am Albis, CH 65 426
Krishnamurthy, Rajaram B Poughkeepsie, US 180 497
Minkenberg, Cyriel Gutenswil, CH 20 213

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