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Marcu, P., Schmitz, D., Hanemann, A., Trocha, S. (2010):

Monitoring and Visualization of the Large Hadron Collider Optical Private Network

The Large Hadron Collider (LHC) experiments at CERN result in vast amounts of data which are interesting for researchers around the world. For transporting the data to 11 data distribution centers, an optical private network (OPN) has been constructed as the result of a collaboration of several academic networks. The multi-domain nature of this collaboration poses new challenges, in particular to network monitoring. This has been addressed by adopting the multi-domain tool set perfSONAR. In the implemented solution, the network users can access network monitoring information from various measurement points through the LHCOPN Weathermap visualization tool. This paper details the tool itself and its operation within the LHCOPN using perfSONAR tools. It serves as a blueprint for the support of future data-intensive large-scale projects.