| TopHat |
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TopHat is a measurement service for PlanetLab Europe, OneLab's flagship testbed, and has been designed by UPMC in the context of the topology information subsystem. It offers a dedicated service that provides network topology information to PlanetLab Europe users and applications running on the PlanetLab system. TopHat's niche lies in its support of the entire lifecycle of an experiment: in assisting users during experiment setup in choosing the nodes on which the experiment will be deployed; at run time, providing live information to support adaptive applications and experiment control; and finally supporting retrospective analysis through access to archived data. TopHat supplies measurements to its users thanks to its own TDMI platform which continuously performs distributed measurements at the IP interface level. These measurements are supplemented by drawing upon several independent specialized measurement infrastructures: DIMES, ETOMIC, SONoMA, and the Team Cymru service, many of which have a proven track record of excellence in providing specialized measurements to the research community. The TopHat infrastructure is presented in more details in the reference article: T. Bourgeau, J. Augé, and T. Friedman. TopHat: supporting experiments through measurement infrastructure federation. Proccedings of TridentCom 2010. Berlin (Germany): May 2010. Other reference material (such as deliverables and presentations), source code (released as free software) and measurement data are available on the website: http://www.top-hat.info |
