Counters-based modified traffic conditioner
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AuthorCano Baños, María Dolores; Cerdán Cartagena, José Fernando; García Haro, Juan; Malgosa Sanahuja, José María
Research GroupGrupo Ingeniería Telemática (GIT)
Knowledge AreaIngeniería Telemática
SponsorsThis work was supported by the Spanish Research Council under grant FAR-IP TIC2000-1734-C03-03.
PublisherSpringer Berlin / Heidelberg
Bibliographic CitationCANO, María Dolores, CERDÁN, Fernando, GARCÍA HARO, Joan, MALGOSA SANAHUJA, José María. Counters-Based Modified Traffic Conditioner. Lecture Notes in Computer Science, 2511: 57-67, 2002. ISSN 0302-9743
Traffic conditioners play a key role in implementing the Assured Service in the framework of the DiffServ approach. Many research papers have focused on finding the best traffic conditioner able to assure contracted target rates and to fairly distribute the excess bandwidth among competing sources. Nevertheless, none of the proposals presented so far accomplishes simultaneously both features. We propose a traffic conditioner for the Internet Assured Service called Counters-Based Modified (CBM) that strictly guarantees target rates and performs a fair share of the excess bandwidth among TCP Reno sources. The ability of strictly providing the inbound bandwidth is inherited from its predecessor the Counters-Based algorithm, and the fairness in the outbound bandwidth distribution is met by probabilistically dropping OUT packets in the traffic conditioner. To determine the dropping probability of an OUT packet, the amount of excess bandwidth and the average RTT of all connections ...
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