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Real-time estimation and dynamic renegotiation of UPC values for arbitrary traffic sources in ATM networks

  • US 6,304,551 B1
  • Filed: 03/21/1997
  • Issued: 10/16/2001
  • Est. Priority Date: 03/21/1997
  • Status: Expired due to Term
First Claim
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1. A method of characterizing an arbitrary asynchronous transfer mode (ATM) traffic stream in real-time comprising the steps of:

  • characterizing the traffic stream statistically over an observation interval T;

    mapping the statistically characterized traffic stream to usage parameter control (UPC) values of a dual leaky bucket which minimize a cost function subject to predetermined constraints of a user, said dual leaky bucket including a peak rate leaky bucket and a sustainable rate leaky bucket, and said UPC values including a peak rate λ

    p, a sustainable rate λ

    s, and a sustainable bucket size Bs;

    detecting a predetermined change in the traffic stream; and

    renegotiating the UPC values with a network when said predetermined change is detected.

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