On the role of flows and sessions in internet traffic modeling: an explorative toy-model

  • Authors:
  • Fabio Ricciato;Angelo Coluccia;Alessandro D'Alconzo;Darryl Veitch;Pierre Borgnat;Patrice Abry

  • Affiliations:
  • University of Salento, Lecce, Italy;University of Salento, Lecce, Italy;Forschungszentrum Telekommunikation Wien;University of Melbourne, Australia;Université de Lyon;Université de Lyon

  • Venue:
  • GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
  • Year:
  • 2009

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Abstract

In this work we present a simple toy-model that is able to explain certain empirical observations reported in a set of previous papers by Hohn et al. [1]-[3] about the wavelet spectrum of real traffic traces. Therein, the authors found that the wavelet spectrum is substantially invariant to flow scrambling and truncation. Such finding suggested that super-flow structures above the transport layer -- i.e., sessions -- can be ignored for modeling the packet arrival process. Based on the proposed toymodel, we offer an interpretation framework that goes in the opposite direction, indicating that sessions, not transport-layer flows, should be taken as the main structural entities in simplified on/off models.