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dc.contributor.authorSerral Gracià, René
dc.contributor.authorLabit, Yann
dc.contributor.authorDomingo Pascual, Jordi
dc.contributor.authorOwezarski, Philippe
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.identifier.citationSerral, R. [et al.]. Towards an efficient Service Level Agreement assessment. A: IEEE Conference on Computer Communications (INFOCOM). "INFOCOM 2009 IEEE Proceedings. The 28th Conference on Computer Communications". Rio de Janeiro: IEEE Computer Society Publications, 2009, p. 2581-2585.
dc.description.abstractOn-line end-to-end Service Level Agreement (SLA) monitoring is of key importance nowadays. For this purpose, past recent researches focused on measuring (when possible) or estimating (most of the times) network QoS or performance parameters. Up to now, attempts to provide accurate techniques for estimating such parameters have failed. In addition, live reporting of the estimated network status requires a huge amount of resources, and lead to unscalable systems. The originality of the contribution presented in this paper, relies on the statement that the accurate estimation of network QoS parameters is absolutely not required in most cases: specifically it is sufficient to be aware of service disruptions, i.e. when the QoS provided by the network collapses. For this purpose, we propose an algorithm for disruption detection of network services. The proposed solution is based on the use of the wellknown Kullback-Leibler Divergence algorithm. More specifically, we work on simple to measure time series, i.e. received interpacket arrival times. In addition of efficiently detecting network QoS disruptions, the algorithm, also drastically reduces the required resources, and the overhead produced by the traffic collection for scalable SLA monitoring systems. The validity of the proposal is verified both in terms of accuracy and consumed resources in a real testbed, using different traffic profiles.
dc.format.extent5 p.
dc.publisherIEEE Computer Society Publications
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
dc.subject.lcshTelecommunication -- Traffic -- Management
dc.subject.lcshComputer networks -- Quality control
dc.subject.otherTime measurement
dc.subject.otherState estimation
dc.subject.otherTelecommunication traffic
dc.subject.otherBroadband communication
dc.subject.otherCommunications society
dc.subject.otherComputer networks
dc.subject.otherDelay estimation
dc.subject.otherQuality of service
dc.titleTowards an efficient Service Level Agreement assessment
dc.typeConference report
dc.subject.lemacTelecomunicació -- Tràfic -- Gestió
dc.subject.lemacOrdinadors, Xarxes d' -- Control de qualitat
dc.contributor.groupUniversitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla
dc.contributor.groupUniversitat Politècnica de Catalunya. ANA - Grup d'Arquitectures Avançades de Xarxes
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorSerral, R.; Labit, Y.; Domingo, J.; Owezarski, P.
local.citation.contributorIEEE Conference on Computer Communications (INFOCOM)
local.citation.pubplaceRio de Janeiro
local.citation.publicationNameINFOCOM 2009 IEEE Proceedings. The 28th Conference on Computer Communications

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