NDLI: Value of Supporting Class-of-Service in IP Backbones

Content Provider	IEEE Xplore Digital Library
Author	Yuksel, M. Ramakrishnan, K.K. Kalyanaraman, S. Houle, J.D. Sadhvani, R.
Copyright Year	2007
Description	Author affiliation: Univ. of Nevada, Reno (Yuksel, M.)
Abstract	The desire or ability of an ISP to provide differentiated service is a current hotly debated topic. In this paper, we quantify the value of having differentiated service (i.e., class-of-service (CoS)) support in an IP backbone. We compare the capacity requirements of a Diffserv environment providing service for applications that require delay or loss assurances in comparison to a network that provides classless (i.e., best-effort) service and still has to meet the same performance assurances. Our modeling framework first develops a link model that quantifies the required extra capacity (REC) in order for a classless link to provide the same level of performance as experienced by premium class traffic passing through a fixed capacity CoS link. We develop the REC calculations for the cases when average delay or the average loss probability is the target performance goal with Poisson or Markov modulated Poisson process (MMPP) input traffic. Our primary contribution is in quantifying the value of the CoS support in a network setting.
Starting Page	109
Ending Page	112
File Size	2971831
Page Count	4
File Format	PDF
ISBN	1424411858
ISSN	1548615X
DOI	10.1109/IWQOS.2007.376555
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spine Traffic control Telecommunication traffic Communication system traffic control Aggregates Network topology Delay Diffserv networks Performance loss Network neutrality
Content Type	Text
Resource Type	Article

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