FAST TCP: motivation, architecture, algorithms, performance

  • Authors:
  • David X. Wei;Cheng Jin;Steven H. Low;Sanjay Hegde

  • Affiliations:
  • Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA;Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA;Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA;Akamai Technologies, San Mateo, CA

  • Venue:
  • IEEE/ACM Transactions on Networking (TON)
  • Year:
  • 2006

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Abstract

We describe FAST TCP, a new TCP congestion control algorithm for high-speed long-latency networks, from design to implementation.We highlight the approach taken by FAST TCP to address the four difficulties which the current TCP implementation has at large windows. We describe the architecture and summarize some of the algorithms implemented in our prototype. We characterize its equilibrium and stability properties. We evaluate it experimentally in terms of throughput, fairness, stability, and responsiveness.