Jan-Pascal van Best
Unravelling Internet Infrastructure
PhD thesis
PhD thesis
  Unravelling Internet Infrastructure
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  Eburon Academic Publishers
Road Safety by Design

On April 4th, 2005, I defended my PhD thesis:

J.P. van Best (2005)
Unravelling Internet Infrastructure
Detecting problem areas in the Internet infrastructure
using end-to-end measurements and delay tomography

Delft: Eburon
ISBN 90 5972 066 0
130 pages

PhD committee:

Prof.dr. W.G. Vree, Delft University of Technology, promotor
Prof.dr. R.J. Meijer, University of Amsterdam
Prof.dr.ir. H.J. Sips, Delft University of Technology
Prof.dr.ir. N.H.G. Baken, Delft University of Technology
Prof.dr.ir. W.A.H. Thissen , Delft University of Technology
Dr. L. Torenvliet, University of Amsterdam
Dr. H.A.J.R. Uijterwaal, RIPE NCC
Order page


The public defence took place in the `Senaatszaal' in the Aula building of Delft University of Technology. A few pictures of this event:

Introduction into the thesis subject for the uninitiated Dr. Henk Uijterwaal asks his questions Prof.dr.ir. Wil Thissen in his opposition Tough opposition by prof.dr. Rob Meijer Jan-Pascal defends his thesis and research Wim overhandigt Jan-Pascal de doctorsbul


The word `Internet' is for most people indistinguishable from the world-wide web. Some people may include e-mail, currently often instant messaging, or maybe peer-to-peer applications or `downloading music'. All these applications are not what this book is about. This book is about the underlying infrastructure, which enables all named applications.

The most important results of this thesis are that it is possible, to a certain extent, to determine information about links delays in the Internet infrastructure from only end-to-end measurements, which can be used to detect slow links in the Internet infrastructure. As another result, insight into the cohesion between the ISPs that together form the Internet can be given. Both results are useful for ISPs in their decision making about with which other ISPs to connect their networks, and for governments in adequately assessing the need and the possible effects of intervention in the, both economically and socially, very relevant Internet. Read more... As PDF...


De meeste mensen denken bij het woord `Internet' aan het world-wide web, aan email, tegenwoordig vaak ook aan instant messaging, en misschien aan peer-to-peer applicaties of `muziek downloaden'. Daarover gaat dit proefschrift niet. Het gaat over de onderliggende infrastructuur, die ervoor zorgt dat de genoemde toepassingen kunnen functioneren.

De belangrijkste resultaten van dit proefschrift zijn dat het tot op zekere hoogte mogelijk is om uit enkel end-to-end metingen informatie over de link delays van individuele Internetverbindingen te destilleren, waardoor langzame verbindingen kunnen worden opgespoord. Bovendien kan er inzicht gegeven worden in de samenhang tussen de ISP's die samen het Internet vormen. Beide vormen van informatie zijn van nut voor ISP's bij het selecteren van partners om hun netwerken aan te koppelen, en voor overheden bij het goed inschatten van de noodzaak en de mogelijke effecten van ingrijpen in het economisch en maatschappelijk uiterst relevante Internet. Meer... Als PDF...


My PhD thesis is accompanied by 10 propositions, which I defended together with my thesis. Read my propositions or view the PDF.

Bij mijn proefschrift horen een tiental stellingen, die ik gelijk met mijn proefschrift heb verdedigd. Lees hier mijn stellingen of bekijk de PDF.


You can buy my book directly from me, using the Order page for "Unravelling Internet Infrastructure"


The `traces' software I developed and used for my PhD research project can be found on my software page.

Site Questions to: Jan-Pascal van Best Last update: Wed 20 Apr 2005 10:50:30