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Design of Probe for Flow Based Monitoring
Žádník, Martin ; Martínek, Tomáš (referee) ; Kořenek, Jan (advisor)
This thesis deals with the design and implementation of a monitoring probe intended for IP flow measurements in high-speed networks. The probe is based on commodity PC and network acceleration card. The monitoring process is partitioned between these two platforms. The thesis explores ways of mapping flow monitoring algorithms to hardware or software implementations. Several improvements are suggested to increase performance and functionality of the probe. Two level memory hierarchy increases the performance whereas autoconfiguration and adaptation of control parameters contribute to its robustness. The definition of variable flow-record allows to customize monitored statistics about the network. Analysis and simulations of proposed architecture indicate that the probe is suitable for monitoring of ten gigabit networks.
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Design of Probe for Flow Based Monitoring
Soľanka, Lukáš ; Martínek, Tomáš (referee) ; Kořenek, Jan (advisor)
This thesis deals with design and implementation of a flow based monitoring probe. The monitoring task performed by the probe is divided into hardware layer, which is capable of measurement at high packet rates, and software layer, which provides large memory for flow storage. Analysis done in the work shows that this concept offers many advantages when compared to software based flow monitoring applications. The probe is designed to be used with a hardware accelerator card and offers high flexibility and performance by a way of user defined monitoring process. The designed system has been implemented and thoroughly tested and is ready for deployment for tasks such as operational monitoring, network traffic classification, anomalies and attacks detection and many others.
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Software Architecture for Flow Based Monitoring Probe
Špringl, Petr ; Kořenek, Jan (referee) ; Martínek, Tomáš (advisor)
This thesis deals with design and implementation of software architecture for Flexible FlowMon probe, accessories for monitoring high speed computer networks based on IP flows. The probe has been developed in project named Liberouter. There is described flow based monitoring and export formats NetFlow version 5, NetFlow version 9 and IPIFX, which are very widely used. The thesis contains description of hardware part of Flexible FlowMon probe including its requirements for software, which are the base of the whole software architecture. There is detailed description of that part of software architecture which was implemented during the work on this thesis.
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Memory Reduction of Stateful Network Traffic Processing
Hlaváček, Martin ; Puš, Viktor (referee) ; Kořenek, Jan (advisor)
This master thesis deals with the problems of memory reduction in the stateful network traffic processing. Its goal is to explore new possibilities of memory reduction during network processing. As an introduction this thesis provides motivation and reasons for need to search new method for the memory reduction. In the following part there are theoretical analyses of NetFlow technology and two basic methods which can in principle reduce memory demands of stateful processing. Later on, there is described the design and implementation of solution which contains the application of these two methods to NetFlow architecture. The final part of this work summarizes the main properties of this solution during interaction with real data.
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