A root cause analysis toolkit for TCP

  • Authors:
  • Matti Siekkinen;Guillaume Urvoy-Keller;Ernst W. Biersack;Denis Collange

  • Affiliations:
  • University of Oslo, Department of Informatics, P.O. Box 1080 Blindern, NO-0316 Oslo, Norway;Institut Eurecom, 2229 Route des Crêtes, Sophia Antipolis, France;Institut Eurecom, 2229 Route des Crêtes, Sophia Antipolis, France;Orange Labs, 905, rue A. Einstein - 06921 Sophia Antipolis, France

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2008

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Abstract

TCP is the most widely used protocol for data transfer over the Internet and for most applications the performance metric of interest is throughput. Identifying the reasons for the throughput limitation of an observed connection is a complex task. We present a set of techniques, called the TCP root cause analysis toolkit, that allow users to determine from a passively captured packet trace the primary cause for the throughput limitation. We present the details of the toolkit and its validation and apply the toolkit to carry out a case study of ADSL traffic.