Identification of performance degradation in IP networks using throughput statistics

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Markus Fiedler, Kurt Tutschku, Patrik Carlsson, Arne A. Nilsson
Title: Identification of performance degradation in IP networks using throughput statistics
Translated title: Identifikation av prestanda nedsättning i IP nätverk genom att använda genomströmnings statistik
Conference name: 18th International Teletraffic Congress (ITC-18)
Year: 2003
Pagination: 399-408
Publisher: Elsevier
City: Berlin, Germany
Organization: Blekinge Institute of Technology
Department: Department of Telecommunications and Signal Processing (Institutionen för telekommunikation och signalbehandling)
Department of Telecommunications and Signal Processing S-372 25 Ronneby
+46 455 38 50 00
Authors e-mail:
Language: English
Abstract: To be able to satisfy their users, interactive applications like video conferences require a certain Quality-of-Service from heterogeneous networks. This paper proposes the use of throughput histograms as Quality-of-Service indicator. These histograms are built from local, unsynchronized, passive measurements of packet streams from the viewpoint of an application. They can easily be exchanged between sender and receiver, and their comparison provides information about severity and type of a potential bottleneck. We demonstrate the usefulness of these indicators for evaluating the transport quality perceived by a video conferencing application and its users in the presence of a bottleneck.
Summary in Swedish: En flaskhalsindikator som bygger på att ta differensen på hastighets-/genomströmningshistogram efter och framför en flaskhals introduceras. Den tillämpas på en videokonferens som störs på kontrollerat sätt av annan trafik. Nyckelord: Internet, flaskhals, flödesmodell, hastighetsstatistik
Subject: Telecommunications\Fluid Flow Models
Telecommunications\Modelling of Bursty Traffics
Keywords: Internet, bottleneck, identification, classification, bit rate statistics, throughput statistics, Quality of Service