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Proceedings Paper

Running integrated services over differentiated service networks: quantitative performance measurements
Author(s): Haowei Bai; Mohammed Atiquzzaman; William A. Ivancic
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Paper Abstract

Integrated Services (IntServ) and Differentiated Services (DiffServ) are two of the current approaches to provide Quality of Service (QoS) guarantees in the next generation Internet. IntServ aims at providing guarantees to end applications (individual connections) which gives rise to scalability issues in the core of the network. On the contrary, DiffServ is designed to provide QoS to aggregates, and does not suffer from scalability. It is therefore, believed that the combination of IntServ at the edge and DiffServ at the core will be able to provide QoS guarantees to end applications. Although there have been several proposals on how to perform mapping of services between IntServ and DiffServ, there hasn't been any study to quantitatively show the level of QoS that can be achieved when the two networks are connected. The of this paper is to quantitatively demonstrate the QoS guarantees that can be obtained by end applications when IntServ is run over DiffServ. We have used goodput, drop ratio and non-conformant ratio of packets from the different services and the queue size of DiffServ router to determine the QoS obtained by packets belonging to different traffic classes.

Paper Details

Date Published: 1 July 2002
PDF: 12 pages
Proc. SPIE 4866, Quality of Service over Next-Generation Internet, (1 July 2002); doi: 10.1117/12.473015
Show Author Affiliations
Haowei Bai, Honeywell Inc. (United States)
Mohammed Atiquzzaman, Univ. of Oklahoma (United States)
William A. Ivancic, NASA Glenn Research Ctr. (United States)

Published in SPIE Proceedings Vol. 4866:
Quality of Service over Next-Generation Internet
Mohammed Atiquzzaman; Mahbub Hassan, Editor(s)

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