End-to-end asymmetric link capacity estimation

Ling Jyh Chen, Tony Sun, Guang Yang, M. Y. Sanadidi, Mario Gerla

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Knowledge of link capacity is important for network design, management, and utilization. With the increasing popularity of asymmetric link technologies (such as DSL, 1xRTT, and satellite links), it is desirable to have a capacity estimation technique, which can simultaneously measure forward and backward direction link capacities on an Internet path. Moreover, this estimation must often be "sender only", because of receiver limitations or lack of standards. In this study, we propose a simple, fast and accurate technique, called AsymProbe, to estimate asymmetric link capacities. AsymProbe is a "sender only", round trip procedure. It achieves asymmetric link capacity estimation by strategically altering the ratio of probe and acknowledgement packet sizes. Using simulation and testbed experiments, we validate AsymProbe with a variety of network configurations. The results show that AsymProbe can correctly estimate the asymmetric link capacities as long as an appropriate packet size ratio can be employed.

Original languageEnglish
Pages (from-to)780-791
Number of pages12
JournalLecture Notes in Computer Science
Volume3462
Publication statusPublished - 2005 Sep 26
Event4th International IFIP-TC6 Networking Conference: Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications Systems, NETWORKING 2005 - Waterloo, Ont., Canada
Duration: 2005 May 22005 May 6

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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    Chen, L. J., Sun, T., Yang, G., Sanadidi, M. Y., & Gerla, M. (2005). End-to-end asymmetric link capacity estimation. Lecture Notes in Computer Science, 3462, 780-791.