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Transactions: INTERNATIONAL JOURNAL of SYSTEMS ENGINEERING, APPLICATIONS AND DEVELOPMENT
Transactions ID Number: 19-178
Full Name: Andrzej Chydzinski
Position: Professor
Age: ON
Sex: Male
Address: Akademicka 16, Gliwice
Country: POLAND
Tel: 323271154
Tel prefix: +48
Fax:
E-mail address: andrzej.chydzinski@polsl.pl
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Title of the Paper: Interactions between AQM routers in the Internet
Authors as they appear in the Paper: Pawel Mrozowski Andrzej Chydzinski
Email addresses of all the authors: pmrozo@go2.pl,andrzej.chydzinski@polsl.pl
Number of paper pages: 8
Abstract: In this paper we present a study on mutual interactions between queue management algorithms implemented in Internet routers. The aim of this research was to detect possible issues connected with deployment of the active queue management (AQM) algorithms in the Internet. For that purpose, we simulated a network with four routers and checked its performance in different configurations of queue management algorithms. In particular, three basic configurations were considered: all routers in the network use the passive queue management, only one router in the network uses the active queue management (other routers use the passive queue management), all routers in the network use the active queue management. Six different AQM algorithms were used and tested in two congestion scenarios. In every case the performance of all bottleneck links was observed as well as the average performance of the whole network. In all the simulations, the average performance of the networ!
k, measured in terms of the queueing delay, was improved by when at least one router used an AQM algorithm. Moreover, in most cases the performance of every bottleneck link was also improved. These results give strong arguments for using AQM in the Internet. However, in some experiments we observed a performance degradation of particular bottleneck links when an AQM algorithm was used, indicating that some problems may indeed arise due to the mutual interactions of AQM routers.
Keywords: Internet routers, Active queue management, Packet queueing, Performance evaluation
EXTENSION of the file: .pdf
Special (Invited) Session: On the Deployment of AQM Algorithms in the Internet
Organizer of the Session: 619-220
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