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Characterization and evaluation of TCP and UDP-based transport on real networks

Caractérisation et Évaluation de TCP et de Protocoles de Transport Basés sur UDP sur des Réseaux Réels

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Abstract

StandardTcp (RenoTcp) does not perform well on fast long distance networks, due to its AMD congestion control algorithm. In this paper we consider the effectiveness of various alternatives, in particular with respect to their applicability to a production environment. We then characterize and evaluate the achievable throughput, stability and intra-protocol fairness of differentTcp stacks (Scalable,Hstcp,Htcp, FastTcp, Reno,Bictcp, hstcp-lp andLtcp) and aUdp based application level transport protocol (Udtv2) on both production and testbed networks. The characterization is made with respect to both the transient traffic (entry and exit of different streams) and the steady state traffic on production Academic and Research networks, using paths withRtts differing by a factor of 10. We also report on measurements made with 10 Gbit/secNics with and withoutTcp Offload Engines, on 10 Gbit/s dedicated paths set up forSc2004.

Résumé

Tcp standard (RenoTcp) n’est pas très efficace dans les réseaux à haut débit longue distance en raison de son algorithme de contrôle de congestionAimd. Dans cet article, nous analysons l’efficacité de diverses alternatives, en particulier en fonction de leur possibilité d’application dans un environnement de production. Nous caractérisons et évaluons, dans des réseaux réels et des réseaux de test, le débit que l’on peut atteindre, la stabilité et l’équité intra-protocole de différentes pilesTcp (Scalable,Hstp, htcp, FastTcp, Reno,Bictcp,Hstcp-lp etLtcp) et d’un protocole de transport basé sur udp (udtv2). Cette analyse est menée entenant compte à la fois du trafic transitoire (entrée et sortie de divers flux) et du trafic en régime permanent des réseaux de production académique, avec des chemins dont lesRtt diffèrent d’un facteur 10. Nous présentons aussi des mesures faites avec des cartes d’interfaces à 10 Gbit/s, avec et sans déport deTcp sur la carte, sur des liaisons à 10 Gbit/s mises en place pour SC2004.

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Authors and Affiliations

  1. Stanford Linear Accelerator Center (SLAC), 2575 Sand Hill Road, 94025, Menlo Park, CA, USA

    R. Les Cottrell, Parakram Khandpur & Ruchi Gupta

  2. Department of Physics and Astronomy, The University of Manchester, Oxford Road, M13 9PL, Manchester, England

    Richard Hughes-Jones

  3. Chelsio, 370 San Aleso Avenue, 94085, Sunnyvale, CA, USA

    Michael Chen

  4. Sun Microsystems Inc., 9515 Town Center Drive, 92121, San Diego, CA, USA

    Larry McIntosh & Frank Leers

Authors
  1. R. Les Cottrell
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  2. Saad Ansari
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  3. Parakram Khandpur
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  4. Ruchi Gupta
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  5. Richard Hughes-Jones
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  6. Michael Chen
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  7. Larry McIntosh
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  8. Frank Leers
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Additional information

This work was supported in part by the U.S. DOE Contract No. DE-AC03-76SF00515.

Saad Ansari was with SLAC. He is now with Microsoft.

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Les Cottrell, R., Ansari, S., Khandpur, P. et al. Characterization and evaluation of TCP and UDP-based transport on real networks. Ann. Télécommun. 61, 5–20 (2006). https://doi.org/10.1007/BF03219966

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  • DOI: https://doi.org/10.1007/BF03219966

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