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dc.contributor.authorCabellos Aparicio, Alberto
dc.contributor.authorThompson, John
dc.contributor.authorGarcía, Francisco J.
dc.contributor.authorDomingo Pascual, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.identifier.citationAlbert Cabellos Aparicio [et al.]. "A passive available bandwidth estimation methodology". 2009.
dc.description.abstractThe Available Bandwidth (AB) of an end-to-end path is its remaining capacity and it is an important metric for several applications such as overlay routing and P2P networking. That is why many AB estimation tools have been published recently. Most of these tools use the Probe Rate Model, which requires sending packet trains at a rate matching the AB. Its main issue is that it congests the path under measurement. We present a different approach: a novel passive methodology to estimate the AB that does not introduce probe traffic. Our methodology, intended to be applied between two separate nodes, estimates the path’s AB by analyzing specific parameters of the traffic exchanged. The main challenge is that we cannot rely on any given rate of this traffic. Therefore we rely on a different model, the Utilization Model. In this paper we present our passive methodology and a tool (PKBest) based on it. We evaluate its applicability and accuracy using public NLANR data traces. Our results -more than 300Gb- show that our tool is more accurate than pathChirp, a state-of-the-art active PRM-based tool. At the best of the authors’ knowledge this is the first passive AB estimation methodology.
dc.format.extent27 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
dc.subject.lcshTelecommunication -- Traffic
dc.subject.otherAvailable bandwidth
dc.titleA passive available bandwidth estimation methodology
dc.typeExternal research report
dc.subject.lemacTelecomunicació -- Tràfic
dc.contributor.groupUniversitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla
dc.rights.accessOpen Access
local.citation.authorAlbert Cabellos Aparicio; Thompson, J.; García, F.; Domingo, J.
local.citation.publicationNameA passive available bandwidth estimation methodology

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