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Auflistung nach Autor:in "Fischer, Wolfgang"

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  • Zeitschriftenartikel
    Internet Monitoring
    (Informatik-Spektrum: Vol. 27, No. 3, 2004) Lepperhoff, Niels; Fischer, Wolfgang
    Weil das Internet für Wirtschaft und Gesellschaft eine immer unverzichtbarere Rolle einnimmt, steigt das Bedürfnis, die Zuverlässigkeit des Internets zu bestimmen und zu bewerten.
  • Konferenzbeitrag
    Internet under threat: Simulation of survivability with INESS
    (INFORMATIK 2003 - Mit Sicherheit Informatik, Schwerpunkt "Sicherheit - Schutz und Zuverlässigkeit", 2003) Fischer, Wolfgang; Lepperhoff, Niels; Volst, Angelika
    There are several studies analysing the Internet's topology to obtain insights into the consequences of disturbances. But concentrating on topology misses the point that the Internet's survivability depends on the relationship of topology, capacity and traffic. Using the INESS simulation model we compare several disturbances of Internet exchange points to reveal the consequences for the survivability of the Internet. We classify disturbances in the aggregated Internet Exchange Points (IX) Frankfurt, Los Angeles, London, Paris, Miami, San Francisco, San Francisco & Los Angeles together, and Tokyo along two dimensions: packet loss and the number other of significantly hampered Internet exchange points. Two important phenomena of disturbances in networks are revealed: the "remote effect" ("Fernwirkung") and the "Janus face".