Mostra el registre d'ítem simple

dc.contributor.authorSanjuàs Cuxart, Josep
dc.contributor.authorBarlet Ros, Pere
dc.contributor.authorDuffield, Nick
dc.contributor.authorKompella, Ramana
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.date.accessioned2011-12-20T14:40:53Z
dc.date.available2011-12-20T14:40:53Z
dc.date.created2011
dc.date.issued2011
dc.identifier.citationSanjuàs, J. [et al.]. Skettching the delay: tracking temporally uncorrelated flow-level latancies. A: Internet Measurement Conference. "Proceeding IMC - Internet Measurement Conference". 2011, p. 483-498.
dc.identifier.urihttp://hdl.handle.net/2117/14288
dc.description.abstractPacket delay is a crucial performance metric for real-time, network-based applications. Obtaining per-flow delay measurements is particularly important to network operators, but is computationally challenging in high-speed links. Recently, passive delay measurement techniques have been proposed that outperform traditional active probing in terms of accuracy and network overhead. However, such techniques rely on the empirical observation that packet delays across different flows are temporally correlated, an assumption that is not met in presence of traffic prioritization, load balancing policies, or due to intricacies of the switch fabric. We present a novel data structure called Lossy Difference Sketch (LDS) that provides per-flow delay measurements without relying on any specific delay model. LDS obtains a notable accuracy improvement compared to the state of the art with a small memory footprint and network overhead. The data structure can be sized according to target accuracy requirements or to fit a low memory budget. We deploy an actual implementation of LDS in an opera- tional research and education network and show that it obtains higher accuracy than temporal correlation-based techniques without exploiting any knowledge about the underlying delay model.
dc.format.extent16 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Xarxes de banda ampla
dc.subject.lcshComputer networks -- Management
dc.titleSkettching the delay: tracking temporally uncorrelated flow-level latancies
dc.typeConference report
dc.subject.lemacXarxes de comunicacions -- Gestió
dc.contributor.groupUniversitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac8791647
dc.description.versionPostprint (published version)
local.citation.authorSanjuàs, J.; Barlet, P.; Duffield, N.; Kompella, R.
local.citation.contributorInternet Measurement Conference
local.citation.publicationNameProceeding IMC - Internet Measurement Conference
local.citation.startingPage483
local.citation.endingPage498


Fitxers d'aquest items

Imatge en miniatura

Aquest ítem apareix a les col·leccions següents

Mostra el registre d'ítem simple