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Event Diagnosis is the next step after Event Detection. IEPM group has established a large infrastruture for network performance measurment all over the world. This infrasture provides near real time network performance related data. IEPM group has developed analysis techniques and tools that detect drop in performance. Event Diagnosis project is aimed at finding out the cause of performance drop. So it is a sub-system under IEPM-BW being developed over Event Detection. Current work is being carried out by a team of researchers at SLAC but given the nature and evident benfits of project it is expected to expand quickly.
Implementation Details
IEPM infrastructure consists of Monitoring Nodes and Monitored Nodes. For Event Diagnosis pupose we add another term Central Node. Below is a small description of each type of node.
Monitoring Node: A node that runs tools for network measurment, collects data, stores data, analyzes data for Event Detection and generates alert on the basis of analysis result. Currently we have six such nodes.
Monitored Node: A node that is measured by a Monitoring Node. Each Monitoring Node has its own set of Monitored Nodes. Currently we have about 40 monitored nodes all over the world.
Central Node: A node that runs Event Diagnosis analysis. There is only one such node for the time being (SLAC)