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Flow control mechanism

  • US 6,026,075 A
  • Filed: 02/25/1997
  • Issued: 02/15/2000
  • Est. Priority Date: 02/25/1997
  • Status: Expired due to Fees
First Claim
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1. A device for use in a communications network including:

  • a housing;

    at least two I/O ports connected to the housing;

    a switching fabric;

    at least one I/O port card operatively coupling the I/O ports to the switching fabric, wherein said at least one I/O port card including logical and electrical circuits for processing frames received from a designated port or to be transmitted to said designated port; and

    a Medium Access Controller (MAC) including logical/electrical circuit arrangements generating at least one flow control frame to be used to adjust bandwidth on a link into said device, said at least one flow control frame including a Magic Cookie Field containing information indicating at least one station record field containing information identifying at least one entity causing congestion.

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