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High-Speed TCP Variants

There have been numerous ideas for improving TCP over the years. Some of those ideas have been adopted by mainstream operations (after thorough review). Recently there has been an uptake in work towards improving TCP's behavior with LongFatNetworks. It has been proven that the current congestion control algorithms limit the efficiency in network resource utilization. The various types of new TCP implementations introduce changes in defining the size of congestion window. Some of them require extra feedback from the network. Generally, all such congestion control protocols are divided as follows.

An orthogonal technique for improving TCP's performance is automatic buffer tuning.

Comparative Studies

All papers about individual TCP-improvement proposals contain comparisons against older TCP to quantify the improvement. There are several studies that compare the performance of the various new TCP variants, including

Other References

  • Gigabit TCP, G. Huston, The Internet Protocol Journal, Vol. 9, No. 2, June 2006. Contains useful descriptions of many modern TCP enhancements.
  • Faster, G. Huston, June 2005. This article from ISP Column looks at various approaches to TCP transfers at very high rates.
  • Congestion Control in the RFC Series, M. Welzl, W. Eddy, July 2006, Internet-Draft (work in progress)
  • ICCRG Wiki, IRTF (Internet Research Task Force) ICCRG (Internet Congestion Control Research Group), includes bibliography on congestion control.
  • RFC 6077: Open Research Issues in Internet Congestion Control, D. Papadimitriou (Ed.), M. Welzl, M. Scharf, B. Briscoe, February 2011

Related Work

  • PFLDnet (International Workshop on Protocols for Fast Long-Distance Networks): 2003,2004,2005,2006,2007,2009, 2010. (The 2008 pages seem to have been removed from the Net.)

– %USERSIG{SimonLeinen - 2005-05-28�2016-09-18}%
– %USERSIG{OrlaMcGann - 2005-10-10}%
– %USERSIG{ChrisWelti - 2008-02-25}%

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