HighSpeed TCP for Large Congestion Windows

Metadata

Publisher: IETF
Doc Type: Experimental
Pages: 34
Abstract: The proposals in this document are experimental. While they may be deployed in the current Internet, they do not represent a consensus that this is the best method for high-speed congestion control. In particular, we note that alternative experimental proposals are likely to be forthcoming, and it is not well understood how the proposals in this document will interact with such alternative proposals. This document proposes HighSpeed TCP, a modification to TCP's congestion control mechanism for use with TCP connections with large congestion windows. The congestion control mechanisms of the current Standard TCP constrains the congestion windows that can be achieved by TCP in realistic environments. For example, for a Standard TCP connection with 1500-byte packets and a 100 ms round-trip time, achieving a steady-state throughput of 10 Gbps would require an average congestion window of 83,333 segments, and a packet drop rate of at most one congestion event every 5,000,000,000 packets (or equivalently, at most one congestion event every 1 2/3 hours). This is widely acknowledged as an unrealistic constraint. To address his limitation of TCP, this document proposes HighSpeed TCP, and solicits experimentation and feedback from the wider community.
Publication Date: 2003-12-01
Status Note: Experimental
DOI: 10.17487/RFC3649
Link: https://doi.org/10.17487/RFC3649
Author(s): Sally Floyd
Keyword(s): TCP, Round Trip

Latest version of IETF RFC 3649

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▶ IETF RFC 3649 (2003-12-01)

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Normative Reference(s)

IETF RFC 2581 [Superseded*]

Bibliographic Reference(s)

URLs " http://www1.ietf.org/mail-archive/working- groups/tsvwg/current/msg04086.html " and " http://www1.ietf.org/mail-archive/working- groups/tsvwg/current/msg04087.html ". EXTERNAL
Amit Jain and Sally Floyd, "Quick-Start for TCP and IP" , Work in Progress, 2002. EXTERNAL
Tom Kelly, "Scalable TCP: Improving Performance in HighSpeed Wide Area Networks", February 2003. URL " http://www-lce.eng.cam.ac.uk/~ctk21/scalable/ ". EXTERNAL
J. Crowcroft and P. Oechslin, "Differentiated End-to-end Services using a Weighted Proportional Fair Share TCP", Computer Communication Review, 28(3):53--69, 1998. EXTERNAL
A. Antony, J. Blom, C. de Laat, J. Lee, and W. Sjouw, "Microscopic Examination of TCP Flows over Transatlantic Links", iGrid2002 special issue, Future Generation Computer Systems, volume 19 issue 6 (2003), URL " http://www.science.uva.nl/~delaat/techrep-2003-2- tcp.pdf ". EXTERNAL
Floyd, S., and Fall, K., "Promoting the Use of End-to-End Congestion Control in the Internet", IEEE/ACM Transactions on Networking, August 1999. EXTERNAL
Dina Katabi, Mark Handley, and Charlie Rohrs, "Congestion Control for High Bandwidth-Delay Product Networks", SIGCOMM 2002. EXTERNAL
Sally Floyd, Sylvia Ratnasamy, and Scott Shenker, "Modifying TCP's Congestion Control for High Speeds", May 2002. URL " http://www.icir.org/floyd/notes.html ". EXTERNAL
Souza, E. and D.A., Agarwal, "A HighSpeed TCP Study: Characteristics and Deployment Issues", LBNL Technical Report LBNL-53215. URL " http://www.icir.org/floyd/hstcp.html ". EXTERNAL
S. Floyd and V. Jacobson, "On Traffic Phase Effects in Packet-Switched Gateways, Internetworking: Research and Experience", V.3 N.3, September 1992, p.115-156. URL " http://www.icir.org/floyd/papers.html ". EXTERNAL
Stanislav Shalunov, "TCP Armonk" , Work in Progress, 2002, URL " http://www.internet2.edu/~shalunov/tcpar/ ". EXTERNAL
D. Chiu and R. Jain, "Analysis of the Increase and Decrease Algorithms for Congestion Avoidance in Computer Networks", Computer Networks and ISDN Systems, Vol. 17, pp. 1-14, 1989. EXTERNAL
Matt Mathis, "Raising the Internet MTU", Web Page, URL " http://www.psc.edu/~mathis/MTU/ ". EXTERNAL
The NS Simulator, " http://www.isi.edu/nsnam/ns/ ". EXTERNAL
Fabrizio Coccetti and Les Cottrell, "TCP Stack Measurements on Lightly Loaded Testbeds", 2003. URL " http://www-iepm.slac.stanford.edu/monitoring/bulk/fast/ ". EXTERNAL
HighSpeed TCP Web Page, URL " http://www.icir.org/floyd/hstcp.html ". EXTERNAL
Tom Dunigan, "Floyd's TCP slow-start and AIMD mods", URL " http://www.csm.ornl.gov/~dunigan/net100/floyd.html ". EXTERNAL
Gareth Fairey, "High-Speed TCP", 2003. URL " http://www.hep.man.ac.uk/u/garethf/hstcp/ ". EXTERNAL
Alex Solan, private communication, 2003. EXTERNAL
Panos Gevros, Fulvio Risso and Peter Kirstein, "Analysis of a Method for Differential TCP Service". In Proceedings of the IEEE GLOBECOM'99, Symposium on Global Internet , December 1999, Rio de Janeiro, Brazil. EXTERNAL
The Web100 project. URL " http://www.web100.org/ ". EXTERNAL
S. Gorinsky and H. Vin, "Extended Analysis of Binary Adjustment Algorithms", Technical Report TR2002-39, Department of Computer Sciences, The University of Texas at Austin, August 2002. URL " http://www.cs.utexas.edu/users/gorinsky/pubs.html ". EXTERNAL
The DOE/MICS Net100 project. URL " http://www.csm.ornl.gov/~dunigan/net100/ ". EXTERNAL
"Web100 at ORNL", Web Page, " http://www.csm.ornl.gov/~dunigan/netperf/web100.html ". EXTERNAL
Cheng Jin, David X. Wei and Steven H. Low, "FAST TCP for High-speed Long-distance Networks", Work in Progress, June 2003. EXTERNAL
Deepak Bansal, Hari Balakrishnan, Sally Floyd, and Scott Shenker, "Dynamic Behavior of Slowly-Responsive Congestion Control Algorithms", SIGCOMM 2001, August 2001. EXTERNAL
IETF RFC 1323 [Superseded*]
IETF RFC 2582 [Superseded*]
IETF RFC 3390 [Active*]
IETF RFC 3448 [Superseded*]

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Referenced By

IETF RFC 4614 [Superseded*]
IETF RFC 4782 [Active*]
IETF RFC 5033 [Superseded*]
IETF RFC 5783 [Active*]
IETF RFC 7414 [Active*]
IETF RFC 8312 [Superseded*]
IETF RFC 9438 [Active*]