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Modélisation d’une architecture orientée service et basée composant pour une couche de Transport autonome, dynamique et hautement configurable

Guillaume Dugué 1
1 LAAS-SARA - Équipe Services et Architectures pour Réseaux Avancés
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : The massive development of Internet and its usage by the public and the subsequent evolution in networks and distributed applications lead to numerous proposals, standardized or not, of new Transport protocols and changes in existing ones (such as TCP) in order to take into account new arising Quality of Service (QoS) applicative needs and the new characteristics of underlying networks. However, no matter how relevant those new solutions are, they are not meeting the success they should because of TCP’s preponderance and overuse in spite of all its well known limits. Therefore, while applications and underlying networks have evolved tremendously, Transport protocols are becoming suboptimal and lead to lesser performances in terms of QoS than what one could expect from newer Transport solutions. In this context the present document analyses the reasons of this situations by indentifying five problematic points which we express in terms of complexity (of use), extensibility, configurability, dependence and deployment. Upon this basis, and trying to address the main problematic, this thesis contribution is not to propose yet another new Transport protocol but to redefine how the Transport Layer operates, its architecture and its interactions with applications. This new Transport Layer, which we call the Autonomic Transport Layer (ATL) aims for transparent integration of existing and future protocol solutions from the upper and lower layers’ point of view as long as simplifying its use by offering a better, wider network abstraction to application developers. To discharge them the complexity of use of the numerous solutions at the Transport level, our solutions integrates autonomy principles to give it decision power over the protocol(s) to instantiate without external intervention and dynamicity so as to be able to adapt the chosen solution during the communication so that it always delivers the best QoS level to applications whatever the contextual evolutions might be for applications or for the network. After a state of the art confronting the current solutions to the different problematic points we identified, this document presents the fundamental principles of the ATL and its global architecture described using UML 2.0. Two major use cases are then introduced to describe the ATL’s behavior. Finally we present several performance figures as evidence of the relevance of a solution such as the ATL.
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https://tel.archives-ouvertes.fr/tel-01079998
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Submitted on : Tuesday, November 4, 2014 - 11:16:24 AM
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Guillaume Dugué. Modélisation d’une architecture orientée service et basée composant pour une couche de Transport autonome, dynamique et hautement configurable. Réseaux et télécommunications [cs.NI]. Institut National des Sciences Appliquées de Toulouse (INSA Toulouse), 2014. Français. ⟨tel-01079998⟩

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