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A Multi Path Routing Algorithm for IP Networks Based on Flow Optimisation
Mälardalen University, School of Innovation, Design and Engineering.
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2002 (English)In: Proceedings of the Third International Workshop on Quality of Future Internet Services / [ed] Burkhard Stiller, Springer Berlin/Heidelberg, 2002, 135-144 p.Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2002. 135-144 p.
Series
Lecture Notes in Computer Science, ISSN 0302-9743 ; 2511
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-1305DOI: 10.1007/3-540-45859-X_13ISBN: 3-540-44356-8 (print)OAI: oai:DiVA.org:mdh-1305DiVA: diva2:37830
Conference
International Workshop on Quality of Future Internet Services, QofIS 2002 and Second International Workshop on Internet Charging and QoS Technologies, ICQT 2002 Zurich, Switzerland, October 16–18,
Available from: 2008-10-14 Created: 2008-10-14 Last updated: 2012-11-08Bibliographically approved
In thesis
1. Internet Traffic Management
Open this publication in new window or tab >>Internet Traffic Management
2008 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Västerås: Mälardalens högskola, 2008
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 95
National Category
Computer Engineering
Research subject
Datavetenskap
Identifiers
urn:nbn:se:mdh:diva-1310 (URN)978-91-86135-08-9 (ISBN)
Presentation
2008-11-20, Kappa, Mälardalens högskola, Västerås, 10:15 (English)
Opponent
Supervisors
Available from: 2008-10-14 Created: 2008-10-14 Last updated: 2008-10-14Bibliographically approved
2. Network overload avoidance by traffic engineering and content caching
Open this publication in new window or tab >>Network overload avoidance by traffic engineering and content caching
2012 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The Internet traffic volume continues to grow at a great rate, now driven by video and TV distribution. For network operators it is important to avoid congestion in the network, and to meet service level agreements with their customers.  This thesis presents work on two methods operators can use to reduce links loads in their networks: traffic engineering and content caching.

This thesis studies access patterns for TV and video and the potential for caching.  The investigation is done both using simulation and by analysis of logs from a large TV-on-Demand system over four months.

The results show that there is a small set of programs that account for a large fraction of the requests and that a comparatively small local cache can be used to significantly reduce the peak link loads during prime time. The investigation also demonstrates how the popularity of programs changes over time and shows that the access pattern in a TV-on-Demand system very much depends on the content type.

For traffic engineering the objective is to avoid congestion in the network and to make better use of available resources by adapting the routing to the current traffic situation. The main challenge for traffic engineering in IP networks is to cope with the dynamics of Internet traffic demands.

This thesis proposes L-balanced routings that route the traffic on the shortest paths possible but make sure that no link is utilised to more than a given level L. L-balanced routing gives efficient routing of traffic and controlled spare capacity to handle unpredictable changes in traffic.  We present an L-balanced routing algorithm and a heuristic search method for finding L-balanced weight settings for the legacy routing protocols OSPF and IS-IS. We show that the search and the resulting weight settings work well in real network scenarios.

Place, publisher, year, edition, pages
Västerås: Mälardalen University, 2012
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 133
National Category
Computer Engineering
Research subject
Computer Science
Identifiers
urn:nbn:se:mdh:diva-16107 (URN)978-91-7585-087-1 (ISBN)
Public defence
2012-12-19, Kappa, Mälardalens högskola, Västerås, 13:15 (English)
Opponent
Supervisors
Available from: 2012-11-07 Created: 2012-11-06 Last updated: 2012-11-19Bibliographically approved

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