Presentation

Advanced Monitoring Techniques for a Large Scale Data Processing Network

We describe the methods used to monitor the performance of the data acquisition network deployed in the ATLAS detector at CERN, Geneva.
Over 4000 ports are interconnected with 200 edge switches and five multi-blade chassis using 1 and 10Gbit/s links. Monitoring must do more than assure functionality since the network will regularly be operated above its design point. We need to distinguish between real and self inflicted problems and identify traffic anomalies. This complex network has exposed issues of scaling that are not satisfactorily addressed commercially and we report in detail on the techniques we developed to meet this challenge.

Speakers

• Brian Martin, CERN

Authors

• B. Martin
• A. Al-Shabibi
• S.M. Batraneanu
• M.D. Ciobotaru
• G.L. Darlea
• M. Ivanovici
• L. Leahu
• S.N. Stancu