Diploma Thesis

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Abstract


Monitoring and evaluating system of network traffic

The goal of the project is the design of the distributed NetFlow Monitor supporting evaluation of the network traffic using NetFlow statistics exported from Cisco routers. It provides nearly real-time traffic monitoring, smart flow filtration, aggregation and statistical evaluation. It is capable of providing multicriterial data flow selection using source/destination IP addresses, protocols, ports etc., including heuristic methods for protocols using dynamic ports.

The NetFlow Analyzer should be able to deal with suspicious network activities (e.g. security attacks, routing troubles etc.) by displaying appropriate warning messages.