Experimental evaluation of TCP protocols for high-speed networks

  • Authors:
  • Yee-Ting Li;Douglas Leith;Robert N. Shorten

  • Affiliations:
  • Hamilton Institute, National University of Ireland, Maynooth, Kildare, Ireland;Hamilton Institute, National University of Ireland, Maynooth, Kildare, Ireland;Hamilton Institute, National University of Ireland, Maynooth, Kildare, Ireland

  • Venue:
  • IEEE/ACM Transactions on Networking (TON)
  • Year:
  • 2007

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Abstract

In this paper, we present experimental results evaluating the performance of the scalable-TCP, HS-TCP, BIC-TCP, FAST-TCP, and H-TCP proposals in a series of benchmark tests. In summary, we find that both Scalable-TCP and FAST-TCP consistently exhibit substantial unfairness, even when competing flows share identical network path characteristics. Scalable-TCP, HS-TCP, FAST-TCP, and BIC-TCP all exhibit much greater RTT unfairness than does standard TCP, to the extent that long RTT flows may be completely starved of bandwidth. Scalable-TCP, HS-TCP, and BIC-TCP all exhibit slow convergence and sustained unfairness following changes in network conditions such as the start-up of a new flow. FAST-TCP exhibits complex convergence behavior.