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AQM performance in multiple congested link networks

Published: 18 March 2005 Publication History

Abstract

TCP Reno, the most widely used implementation on the Internet, uses retransmission timeouts and the receipt of three duplicate ACKs to detect packet loss in the network. In case of multiple congested links, it is important to detect packet losses as early as possible in order to prevent unnecessary timeouts and retransmits. Active Queue Management (AQM) schemes seek to improve the overall user response time by using queue build-ups at the routers to detect congestion. Previous research has focused on determining the effects of AQM schemes on HTTP/1.0 traffic in single congested link networks [2]. In this experiment, we evaluated the performance of TCP Reno with drop-tail routers and ECN-enabled TCP with Selective Acknowledgements (SACK) [5] over Adaptive Random Early Detection (ARED) [4] routers in a multiple congested link network.

References

[1]
Cao, J., Cleveland, W. S., Gao, Y., Jeffay, K., Smith, F. D., and Weigle, M. C., Stochastic Models for Generating Synthetic HTTP Source Traffic, In Proceedings of IEEE INFOCOM, Hong Kong, March 2004.
[2]
Christiansen, M., Jeffay, K., Ott, D., and Smith, F. D., Tuning RED for Web Traffic, In Proceedings of SIGCOMM 2000, pages 139--150, 2000.
[3]
Floyd, S., TCP and Explicit Congestion Notification, ACM Computer Communication Review, 24 (5), pages 10--23, 1994.
[4]
Floyd, S., Gummadi, R., and Shenker, S., Adaptive RED: An Algorithm for Increasing the Robustness of RED's Active Queue Management, Technical Note, August 2001.
[5]
Floyd, S., Mathis, M., Mahdavi, J., and Romanow, A., TCP Selective Acknowledgement Options, RFC 2018, 1996.
[6]
McCanne, S. and Floyd, S., ns Network Simulator, http://www.isi.edu/nsnam/ns/.
[7]
Weigle, M. C., Jeffay, K., and Smith, F. D., Delay-Based Early Congestion Detection and Adaptation: Impact on Web Performance, Computer Communications: The International Journal for the Computer and Telecommunications Industry, accepted November 2004, to appear.

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cover image ACM Conferences
ACMSE '05 vol 2: Proceedings of the 43rd annual ACM Southeast Conference - Volume 2
March 2005
430 pages
ISBN:1595930590
DOI:10.1145/1167253
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 18 March 2005

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ACM SE05
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ACM SE05: ACM Southeast Regional Conference 2005
March 18 - 20, 2005
Georgia, Kennesaw

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Overall Acceptance Rate 502 of 1,023 submissions, 49%

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