Change search
ReferencesLink to record
Permanent link

Direct link
Flent: The FLExible Network Tester
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (DISCO)ORCID iD: 0000-0001-5241-6815
2015 (English)Conference paper (Other academic)
Place, publisher, year, edition, pages
2015.
National Category
Computer Science
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-43364OAI: oai:DiVA.org:kau-43364DiVA: diva2:939442
Conference
The 11th Swedish National Computer Networking Workshop (SNCNW), Karlstad, Sweden, May 28–29, 2015
Available from: 2016-06-19 Created: 2016-06-19 Last updated: 2016-11-24Bibliographically approved
In thesis
1. On the Bleeding Edge: Debloating Internet Access Networks
Open this publication in new window or tab >>On the Bleeding Edge: Debloating Internet Access Networks
2016 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

As ever more devices are connected to the internet, and applications turn ever more interactive, it becomes more important that the network can be counted on to respond reliably and without unnecessary delay. However, this is far from always the case today, as there can be many potential sources of unnecessary delay. In this thesis we focus on one of them: Excess queueing delay in network routers along the path, also known as bufferbloat.

We focus on the home network, and treat the issue in three stages. We examine latency variation and queueing delay on the public internet and show that significant excess delay is often present. Then, we evaluate several modern AQM algorithms and packet schedulers in a residential setting, and show that modern AQMs can almost entirely eliminate bufferbloat and extra queueing latency for wired connections, but that they are not as effective for WiFi links. Finally, we go on to design and implement a solution for bufferbloat at the WiFi link, and also design a workable scheduler-based solution for realising airtime fairness in WiFi.

Also included in this thesis is a description of Flent, a measurement tool used to perform most of the experiments in the other papers, and also used widely in the bufferbloat community.

Place, publisher, year, edition, pages
Karlstad: Karlstad University Press, 2016. 20 p.
Series
Karlstad University Studies, ISSN 1403-8099 ; 2016:49
Keyword
Bufferbloat, WiFi, AQM, queueing, network measurement, performance evaluation, fairness
National Category
Computer Science
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-47001 (URN)978-91-7063-732-2 (ISBN)
Presentation
2016-12-06, 1B309 (Sjöströmsalen), Karlstads Universitet, Universitetsgatan 2, Karlstad, 13:15 (English)
Opponent
Supervisors
Available from: 2016-11-16 Created: 2016-11-01 Last updated: 2016-11-16Bibliographically approved

Open Access in DiVA

fulltext(537 kB)2 downloads
File information
File name FULLTEXT01.pdfFile size 537 kBChecksum SHA-512
caac92e08a0f7b15a9baed926fff127c79cafd3317f0bbee2a9f27e4e462e7ac2461af904042078d8bc10a597c653ddea555b6a925b65d6b5e8ab7bad1c53d1b
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Høiland-Jørgensen, Toke
By organisation
Department of Mathematics and Computer Science
Computer Science

Search outside of DiVA

GoogleGoogle Scholar
Total: 2 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 33 hits
ReferencesLink to record
Permanent link

Direct link