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Methods and devices for regulating traffic on a network

  • US 8,862,732 B2
  • Filed: 11/09/2009
  • Issued: 10/14/2014
  • Est. Priority Date: 05/01/2003
  • Status: Active Grant
First Claim
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1. A method of controlling bandwidth utilization of a network subscriber, comprising:

  • using a first token bucket associated with a network subscriber to regulate bursty traffic, the first token bucket having a first capacity B1 for first tokens, each first token authorizing the network subscriber to transmit a unit of data, the first tokens added to the token bucket at a first rate R1;

    monitoring a subscriber'"'"'s bandwidth utilization by using a second token bucket, the second token bucket having a second capacity B2 for second tokens, the second tokens being added to the second token bucket at a second rate R2,wherein said second token bucket has a capacity B2 that is at least about 100 times larger than the first capacity B1 of the first token bucket;

    evaluating the amount of a subscriber'"'"'s transmissions during a predetermined time period using the second token bucket;

    determining that the subscriber'"'"'s bandwidth utilization exceeds a predetermined threshold during a predetermined time period; and

    enforcing a new level of service for the subscriber.

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