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Improved sample filtering method for measuring end-to-end path capacity

  • Li Wen-wei  (黎文伟)Email author
  • Tang Jun-long  (唐俊龙)
  • Zhang Da-fang  (张大方)
  • Xie Gao-gang  (谢高岗)
Article

Abstract

By analyzing the effect of cross traffic (CT) enforced on packet delay, an improved path capacity measurement method, pcapminp algorithm, was proposed. With this method, path capacity was measured by filtering probe samples based on measured minimum packet-pair delay. The measurability of minimum packet-pair delay was also analyzed by simulation. The results show that, when comparing with pathrate, if the CT load is light, both pcapminp and pathrate have similar accuracy; but in the case of heavy CT load, pcapminp is more accurate than Pathrate. When CT load reaches 90%, pcapminp algorithm has only 5% measurement error, which is 10% lower than that of pathrate algorithm. At any CT load levels, the probe cost of pcapminp algorithm is two magnitudes smaller than that of pathrate, and the measurement duration is one magnitude shorter than that of pathrate algorithm.

Key words

network measurement path capacity capacity measurement path delay 

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Copyright information

© Published by: Central South University Press, Sole distributor outside Mainland China: Springer 2007

Authors and Affiliations

  • Li Wen-wei  (黎文伟)
    • 1
    Email author
  • Tang Jun-long  (唐俊龙)
    • 2
  • Zhang Da-fang  (张大方)
    • 1
  • Xie Gao-gang  (谢高岗)
    • 3
  1. 1.School of SoftwareHunan UniversityChangshaChina
  2. 2.Department of Physics and Electronic ScienceChangsha University of Science and TechnologyChangshaChina
  3. 3.Institute of Computing TechnologyChinese Academy of SciencesBeijingChina

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