End-to-end TCP performance of the couple CBM traffic conditioner and RIO buffer management in a three node topology
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Research GroupGrupo Ingeniería Telemática (GIT)
Knowledge AreaIngeniería Telemática
SponsorsThis work was supported by the Spanish Research Council under projects TEC2004-05622-C04-02/TCM and TIC2001-3339-C02-02.
PublisherInternational Association of Science and Technology for Development (IASTED)
Bibliographic CitationCANO, María Dolores, CERDÁN, Fernando. End-to-end TCP performance of the couple CBM traffic conditioner and RIO buffer management in a three node topology. En: IASTED International Conference on Communications and Computer Networks, CNN`04 ( 2ª: 2004: Cambridge, USA). Proceedings of the Second IASTED International Conference on Communications and Computer Networks. Cambridge: IASTED, 2004. 293-299 p. ISBN 0-88986-429-2
KeywordsAcondicionador de tráfico
Topologías de tres nudos
Differentiated service (DiffServ)
Topology of three nodes
Despite the abundant literature written about the AF PHB, no solution has been found to efficiently face up its two goals, assuring a minimum rate to the users and offering a fair distribution of the excess bandwidth if available. The Counters Based Modified (CBM) traffic conditioner, presented in a previous work, is able to achieve these objectives in single-node topologies. This paper raises issues with providing bandwidth assurance and spare bandwidth distribution for TCP flows in more complex topologies than usual. Simulation results explore the effect of target rates, round trip times, and efficiency of CBM when up to three network nodes implement service differentiation, including in some cases the coexistence of assured service and best-effort traffics.
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