Call level traffic analysis of a large ISP

Jorma Kilpi, Ilkka Norros

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


We have analyzed session log files of an authentication server of a large commercial Internet service provider. We study dependence of session characteristics on byte level asymmetry, discuss modelling aspects of session arrival process and differences between ISDN and modem users. The main findings are that byte level asymmetry can be used to classify sessions, intensity of session arrival process seem to have stochastic nature, and there seem to be qualitative differences between modem and ISDN users.
Original languageEnglish
Title of host publication13th ITC Specialist Seminar on Internet Traffic Measurement and Modelling
Number of pages6
Publication statusPublished - 2000
MoE publication typeA4 Article in a conference publication
Event13th ITC specialist seminar: IP traffic measurement, modeling and management - Monterey , United States
Duration: 18 Sep 200020 Sep 2000


Conference13th ITC specialist seminar
CountryUnited States


  • traffic measurement
  • ITC
  • traffic modeling
  • traffic management

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