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A network architecture for providing per-flow delay guarantees with scalable core

Chaporkar, P and Kuri, J (2002) A network architecture for providing per-flow delay guarantees with scalable core. In: Journal of High Speed Networks, 12 (3-4). pp. 87-109.

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Official URL: http://iospress.metapress.com/content/dk453p3u6n72...


Many real-time applications demand delay guarantees from the network. A network architecture designed to support these applications should be robust and scalable. The IntServ architecture provides per-flow QoS at the cost of robustness and scalability. The DiffServ architecture is robust and scalable but can provide QoS at a class level and not at a flow level. In this paper, our aim is to design architectures that are scalable and robust like DiffServ and at the same time able to provide per-flow QoS like IntServ. We propose a non work-conserving and a work-conserving architecture to achieve this goal. The guaranteeable delay regions of these architectures are the same as those of GPS based policies with rate proportional resource allocation. We also propose a scheme to provide meaningful throughput and responsiveness to best effort traffic even in the presence of heavy QoS load.

Item Type: Journal Article
Publication: Journal of High Speed Networks
Publisher: IOS Press
Additional Information: copyright of this article belongs IOS Press.
Keywords: QoS;differentiated services;scalable core;delay guarantee; schedulability
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited: 18 Nov 2009 10:31
Last Modified: 18 Nov 2009 10:31
URI: http://eprints.iisc.ac.in/id/eprint/16713

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