Measurement of loss pairs in network paths

Edmond W.W. Chan, Xiapu Luo, Weichao Li, Waiting W.T. Fok, Kow Chuen Chang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

6 Citations (Scopus)


Loss-pair measurement was proposed a decade ago for discovering network path properties, such as a router's buffer size. A packet pair is regarded as a loss pair if exactly one packet is lost. Therefore, the residual packet's delay can be used to infer the lost packet's delay. Despite this unique advantage shared by no other methods, no loss-pair measurement in actual networks has ever been reported. In this paper, we further develop the loss-pair measurement and make the following contributions. First, we characterize the residual packet's delay by including other important factors (such as the impact of the first packet in the pair) which were ignored before. Second, we employ a novel TCP-based probing method to measure from a single endpoint all four possible loss pairs for a round-trip network path. Third, we conducted loss-pair measurement for 88 round-trip paths continuously for almost three weeks. Being the first set of loss-pair measurement, we obtained a number of original results, such as prevalence of loss pairs, distribution of different types of loss pairs, and effect of route change on the paths' congestion state.
Original languageEnglish
Title of host publicationIMC'10 - Proceedings of the 2010 ACM Internet Measurement Conference
Number of pages14
Publication statusPublished - 1 Dec 2010
Event10th Internet Measurement Conference, IMC'10 - Melbourne, VIC, Australia
Duration: 1 Nov 20103 Nov 2010


Conference10th Internet Measurement Conference, IMC'10
CityMelbourne, VIC


  • Delay
  • Loss pair
  • Non-cooperative
  • Packet pair

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications


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