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RIPE 49 Meeting

Test Traffic Working Group

Date: Thursday 23 September 2004
Time: 09.00 - 10.30
Time: 11.00 - 12.30
Location: Michelangelo Suite

Draft Agenda

  • TTM Status Update
    Henk Uijterwaal, RIPE NCC
  • A. Administrative Matters
    - scribe
    - list of participants
    - agenda
    - minutes
  • B. "Modeling of end-to-end delays using Weibull-distribution mixtures" (PDF)
    Jose Hernandez & Iain Phillips, Computer Science, Loughborough University, UK

    Abstract:
    End-to-end delay and loss experienced among edges in the Internet contain representative information about the current performance of the network entities in between. The appropriate analysis and modeling of such metrics can provide meaningful information to assess administrators in several management issues ranging network
    provisioning, traffic engineering and performance prediction.

    We introduce a parsimonious model to characterise end-to-end delay variability with a reduced weighted combination of Weibull distributions, motivated by the current state of art in traffic analysis. In addition, we present an optimal procedure, based on the Expectation Maximisation algorithm, to easily compute the Maximum Likelihood estimates.

    Validity and application examples based on real measurements collected by RIPE NCC are incorporated into this work.

  • C. The "Metropolis" Project
    Kave Salamatian, University Pierre and Marie Curie-LIP6, France

    Abstract: Métropolis project is a large measurement effort funded by the French government through the RNRT funding agency. This 3 year long project has involved up 450 man.month and has helped the emergence of a research community on measurement. This talk will give a broad presentation of this project and its outcome. It will in particular focus on the collaboration with RIPE-TTM and on the enhancement we made to the RIPE Testboxes.

  • D. “SMARTxAC”: A passive monitoring and analysis system for high-speed links (PDF)
    Pere Barlet & Jordi Domingo-Pascual, Universitat Politècnica de Catalunya, BARCELONA Catalunya (Spain)

    Abstract: SMARTxAC is a passive measurement and real-time analysis system for high-speed links, developed under a collaboration agreement between the Technical University of Catalonia (UPC) and the Supercomputing Center of Catalonia (CESCA). Currently, SMARTxAC is being used for monitoring and analyzing the traffic of the Catalan R&D network (Anella Cientifica), which connects about 50 Universities and Research Centers in Catalonia.

    This talk will describe the architecture and main characteristics of such a system, as well as the results obtained in its continuous usage in the Anella Cientifica. Finally, the ongoing work will be presented, focused on the detection of network anomalies and the recent collaborations with another related measurement projects like CoMo.

  • E. "CoMo", The Open Monitoring Infrastructure Project (PDF)
    Gianluca Iannaccone, Intel Labs, Cambridge, UK

    Abstract:
    CoMo (Continuous Monitoring) is a passive monitoring system. CoMo has been designed to be the fundamental building block of an open network monitoring infrastructure that would allow researchers and practitioners to easily process and share network traffic statistics over multiple sites. This talk identifies the challenges that lie ahead in the deployment of such an open infrastructure. These main challenges are: (1) the system must allow any generic metric to be computed on the incoming traffic stream, (2) it must provide privacy and security guarantees to the owner of the monitored link, the network users and the CoMo users, and (3) it must be robust in the face of anomalous traffic patterns, We describe the high level architecture of CoMo and focus our attention to resource management, query processing and security aspects.

  • F. 6QM Solution for IPv6 QoS Measurements (PDF)
    Jordi Palet Martinez, ConsulIntel, Spain

    Abstract:
    The QoS measurement system is a key element to verify the QoS available within networks. There are not many products available which support IPv6 QoS measurement, so the prototype system developed by the IST project 6QM (IPv6 QoS Measurement) aims to be a good reference for this kind of products. This presentation will describe the main characteristics of 6QM OpenIMP prototype, which is pretty fully operational according to its specifications for measurements on Passive only, Active only and Passive and Active combined modes. Will also include a description of some key characterisation tests and results done to prototype in order to provide to the users the confidence in its results and not overcome its limitations. Finally an on-line demonstration including several 6QM probes, deployed in Europe and Japan will be done.

  • Z. AOB