FAST TCP: fairness and queuing issues

FAST TCP: fairness and queuing issues

This letter considers problems of unfairness and excessive variations of the router queue associated with FAST TCP operations due to inaccurate estimation of the round-trip propagation delay. Using a simple example, we explain unfairness in FAST TCP caused by this inaccurate estimation. We also pres...

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Veröffentlicht in:IEEE communications letters 2005-08, Vol.9 (8), p.762-764
Hauptverfasser: Liansheng Tan, Cao Yuan, Zukerman, M.
Format: Artikel
Sprache:eng
Schlagworte:
Access methods and protocols, osi model
Added delay
Analytical models
Applied sciences
Australia Council
Delay estimation
Diffserv networks
Equations
Exact sciences and technology
Loss measurement
Performance analysis
Propagation delay
Queueing analysis
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
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Beschreibung
Zusammenfassung:This letter considers problems of unfairness and excessive variations of the router queue associated with FAST TCP operations due to inaccurate estimation of the round-trip propagation delay. Using a simple example, we explain unfairness in FAST TCP caused by this inaccurate estimation. We also present analytical and simulation performance studies and show that improving this estimation by giving the first packet in every flow priority can improve fairness and reduce queuing variations.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2005.1496608