A~protocol for QoS contract negotiation and its implementation using web Services

Hélia Pouyllau 1 Stefan Haar 2
2 DISTRIBCOM - Distributed and Iterative Algorithms for the Management of Telecommunications Systems
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique
Abstract : The way Internet is used changes: demand grows for critical services that cross several provider networks; guaranteeing a required end-to-end Quality of Service (QoS) across several networks becomes a challenge. Some critical services (e.g. video-conference, VPN etc.) can not be satisfied in a best effort fashion. The use of QoS contracts (Service Level Agreements, SLAs) is effective for management of such services. However, the problem of meeting end-to-end QoS requirement remains: no centralized entity can compute overall QoS for chains of contracts, and a fortiori, such contract chains can not be optimized centrally. Thus, the following problem has to be solved: given an end-to-end QoS request and collections of available SLAs on each participating domain, establish an end-to-end contract committing a chain of providers and giving optimal service under most reliable guarantees available.
Type de document :
Communication dans un congrès
Proceedings of the 6th International Conference on Web Services (ICWS'07), 2007, Salt Lake City, Utah, USA, United States. IEEE Computer Society Press, pp.168-175, 2007, 〈10.1109/ICWS.2007.14〉
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https://hal.inria.fr/inria-00638309
Contributeur : Stefan Haar <>
Soumis le : vendredi 4 novembre 2011 - 15:10:04
Dernière modification le : jeudi 11 janvier 2018 - 06:20:08

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Hélia Pouyllau, Stefan Haar. A~protocol for QoS contract negotiation and its implementation using web Services. Proceedings of the 6th International Conference on Web Services (ICWS'07), 2007, Salt Lake City, Utah, USA, United States. IEEE Computer Society Press, pp.168-175, 2007, 〈10.1109/ICWS.2007.14〉. 〈inria-00638309〉

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