A Study on the Performance Analysis and Synthesis for a Differentiated Service Networks


The KIPS Transactions:PartC, Vol. 9, No. 1, pp. 123-134, Feb. 2002
10.3745/KIPSTC.2002.9.1.123,   PDF Download:

Abstract

The requirement for QoS (Quality of Service) has become an important issue as real-time or high-bandwidth services are increasing, such as Internet Telephony, Internet broadcasting, and multimedia service etc. In order to guarantee the QoS of Internet application services, several approaches are being sought including IntServ (Integrated Services), DiffServ (Differentiated Services), and MPLS (Multi-Protocol Label Switching). In this paper, we describe the performance analysis of QoS guarantee mechanism using the DiffServ. To analyze how the DiffServ performance was affected by diverse input traffic models and the weight value in WFQ (Weighted Fair Queueing), we simulated and performed performance evaluation under a random, bursty, and self-similar input traffic models and for diverse input parameters. Based on the results of performance analysis, it was confirmed that significant difference exist in packet delay and loss depending on the input traffic models used. However, it was revealed that QoS guarantee is possible to the EF (Expedited Forwarding) class and the service separation between EF and BE (Best Effort) classes may also be achieved. Next, we discussed the performance synthesis problem. We derived the conservation laws for a DiffServ networks, and analyzed the performance variation and dynamic behavior based on the resource allocation (i.e., weight value) in WFQ.


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Cite this article
[IEEE Style]
Y. H. Jeon and S. Y. Park, "A Study on the Performance Analysis and Synthesis for a Differentiated Service Networks," The KIPS Transactions:PartC, vol. 9, no. 1, pp. 123-134, 2002. DOI: 10.3745/KIPSTC.2002.9.1.123.

[ACM Style]
Yong Hee Jeon and Soo Young Park. 2002. A Study on the Performance Analysis and Synthesis for a Differentiated Service Networks. The KIPS Transactions:PartC, 9, 1, (2002), 123-134. DOI: 10.3745/KIPSTC.2002.9.1.123.