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Router apparatus using ATM switch

  • US 20050008025A1
  • Filed: 07/20/2004
  • Published: 01/13/2005
  • Est. Priority Date: 09/03/1996
  • Status: Abandoned Application
First Claim
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1. A packet switching device which switches packets comprising:

  • managing means which manages route information of said packets;

    a control unit which controls said packet switching device as a whole;

    a plurality of input line interfaces, wherein each line interface comprises;

    receiving means which receives variable-length packets from an input line, storage means which stores therein said route information from said control unit, determining means which determines routes of said variable-length packets received based on contents of said variable-length packets and said route information stored in said storing means, and means for converting said variable-length packets into a plurality of fixed-length packets respectively, and outputting each of said fixed-length packets by adding thereto said route information determined by said determining means;

    a multiplexing unit which receives said plurality of the fixed-length packets outputted from said plurality of line interfaces, and multiplexes said fixed-length packets to output a plurality of fixed-amount packets each having different route information;

    a switch which receives said plurality of fixed-length packets each having different route information outputted from said multiplexing unit and outputting each of the fixed-length packets in accordance with said route information attached thereto; and

    an output line interface which receives said plurality of the fixed-length packets outputted from said switch and assemble the original variable length packets therefrom to output them to an output line.

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