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Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost

DC CAFC
  • US 7,450,500 B2
  • Filed: 01/21/2003
  • Issued: 11/11/2008
  • Est. Priority Date: 01/23/1997
  • Status: Expired due to Fees
First Claim
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1. A switch for coupling a plurality of Fibre Channel Arbitrated Loop (FCAL) nets, comprising:

  • a plurality of separate backplane data paths; and

    a plurality of port integrated circuits selectably coupled together by said separate backplane data paths, each integrated circuit having integrated thereon a port circuit comprising an FCAL net interface for coupling to one FCAL net and a portion of a crossbar switch coupled to said FCAL net interface, and configured to couple said port to any selectable one of said separate backplane data paths,wherein each of said plurality of port integrated circuits has a priority level for access to busy destination nodes.

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