4th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks & Communities

Research Article

LaasNetExp: A Generic Polymorphic Platform for Network Emulation and Experiments

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  • @INPROCEEDINGS{10.4108/tridentcom.2008.3225,
        author={Philippe Owezarski and Pascal Berthou and Yann Labit and David Gauchard},
        title={LaasNetExp: A Generic Polymorphic Platform for Network Emulation and Experiments},
        proceedings={4th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks \& Communities},
        publisher={ICST},
        proceedings_a={TRIDENTCOM},
        year={2010},
        month={5},
        keywords={experiments in real environment emulation realistic experiments reproducible and controlled experiments traffic generator.},
        doi={10.4108/tridentcom.2008.3225}
    }
    
  • Philippe Owezarski
    Pascal Berthou
    Yann Labit
    David Gauchard
    Year: 2010
    LaasNetExp: A Generic Polymorphic Platform for Network Emulation and Experiments
    TRIDENTCOM
    ICST
    DOI: 10.4108/tridentcom.2008.3225
Philippe Owezarski1,*, Pascal Berthou1,*, Yann Labit1,*, David Gauchard1,*
  • 1: LAAS-CNRS University of Toulouse 7 Avenue du Colonel Roche 31077 Toulouse cedex 4 France
*Contact email: owe@laas.fr, berthou@laas.fr, ylabit@laas.fr, gauchard@laas.fr

Abstract

Network experiments are essential for assessing and validating new networking technologies, architectures and protocols. These assessments have long been performed using network simulators. But it clearly appeared that the results got in simulations cannot be reproduced in real environment. Emulators can hardly integrate accurate models of all networking components, end host operating systems and applications what leads to unrealistic simulations very often. Therefore, some work has been issued for developing real experiment platform and network emulators. This paper addresses the motivations that raised the design and development of such an experimental platform at LAAS - laasnetexp - and describes its constituting features and components. It is in particular detailed how experimental conditions can be fully controlled for reproducible and easy to analyze experiments. Last, this paper describes how realistic conditions can be set-up in experiments by using the results of actual Internet and Internet traffic characterization, analysis and modeling. Such information helps to realistically configure emulators as well as define realistic traffic generators. The realism of such experiments is illustrated as a demonstration of the interest of laasnetexp for networking research.