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kummer2013parallel

Martin Kummer, "Parallel Packet Capturing in Vermont Using DNA/Libzero," Bachelor Thesis, Institute of Computer Science, University of Innsbruck, May 2013. (Advisors: Falko Dressler and Felix Erlacher)

Abstract

Analyzing network traffic is an important area within the field of network security. The network monitoring software Vermont is designed to perform such an analysis on standard PC hardware. It uses the well-known library libpcap to capture packets and was originally designed for 1 Gbit networks. Due to advances in hardware technology, analyzing 10 Gbit of data per second with Vermont is now an achievable goal, but to reach it, adaptations to the Vermont software have to be made. This work describes an adaption to Vermont that increases the capturing performance by replacing libpcap with the more modern library DNA/libzero. Unlike libpcap, DNA/libzero was designed to capture traffic from a 10 Gbit network. Apart from having a better performance, DNA/libzero can also split the data between several threads that capture packets in parallel. When using DNA/libzero and exploiting the possibility to parallelize the capturing, Vermont was shown to capture real-life traffic at 10 Gbit/s with hardly any data loss. Even under the worst possible conditions – a constant stream of 64-byte packets – the capture rate of this setup stays above 83%.

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Martin Kummer

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@phdthesis{kummer2013parallel,
    author = {Kummer, Martin},
    title = {{Parallel Packet Capturing in Vermont Using DNA/Libzero}},
    advisor = {Dressler, Falko and Erlacher, Felix},
    institution = {Institute of Computer Science},
    location = {Innsbruck, Austria},
    month = {5},
    school = {University of Innsbruck},
    type = {Bachelor Thesis},
    year = {2013},
   }
   
   

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