Apparatus and methods to change thresholds to control congestion in ATM switches

  • US 5,901,147 A
  • Filed: 08/30/1996
  • Issued: 05/04/1999
  • Est. Priority Date: 08/30/1996
  • Status: Expired due to Term
First Claim
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1. A method for processing cells in an ATM switch, the method comprising:

  • creating one or more queues for the cells;

    determining a region ID for the one or more queues, wherein the range of the possible number of cells in the one or more queues is subdivided into regions and the region ID identifies the region containing the current number of cells in the one or more queues;

    determining a threshold for the number of cells from the region ID in order to control congestion of the switch; and

    changing the threshold when the region ID changes so that threshold changes inversely depending on the number of cells.

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