Internet Packet Loss: Measurement and Implications for End-to-End QoS

  • Authors:
  • Michael S. Borella;Debbie Swider;Suleyman Uludag;Gregory B. Brewster

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ICPPW '98 Proceedings of the 1998 International Conference on Parallel Processing Workshops
  • Year:
  • 1998

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Abstract

We analyze a month of Internet packet loss statistics forspeech transmission using three different sets of transmitter/receiver host pairs. Our results indicate that packet lossis highly bursty, with the majority of individual losses occurringin a relatively small number of bursts. We find that lossexhibits dependence in most cases, but is not always well-modeledas dependent. We introduce an analytical techniquefor measuring loss dependency. We also consider theasymmetry of round-trip packet loss, and find that most losson a round-trip path occurs in either one direction or theother. We introduce a normalized metric for measuring lossasymmetry and apply it to our measurements. Finally wediscuss the implications of our study for the next generationof real-time voice services in the Internet.