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We examine the problem of evaluating the performance of TCP connections over wide area networks. Our approach combines experimental and analytic methods, and proceeds in three steps. First, we have used measurements taken over Renater to provide a basis for the chosen analytic model. This model turns out to be a shared bottleneck model, in which a nite(More)
In order to control the ow in TCP/IP protocol, each TCP source uses a transmission window which indicates the number of packets that may be transmitted by the source but not yet acknowledged by the destination. We consider the Tahoe algorithm 7] developed by Van Jacobson for the adjustment of the window size and the computations of time-out values. This(More)
In this paper we have focused on the evolution of the Web-marketing meaning the passage of the Web-marketing 2.0 to 3.0, baptized “Semantic Web-marketing”, the main idea being to make easier to the Internet user to use a huge and disrupting stream of information and make it organized and easily accessible. As so, we have chosen to use the(More)
To provide a complete analysis of the organization, its business and its needs, it is necessary for leaders to have data that help decision making. Data warehouses are designed to meet such needs; they are an analysis and data management technology. This article describes an MDA (Model Driven Architecture) process that we have used to automatically generate(More)
– To provide a complete analysis of the organization, its business and its needs, it is necessary for leaders to have data that help decision making. Data warehouses are designed to meet such needs; they are an analysis and data management technology. This article describes an MDA (Model Driven Architecture) process that we have used to automatically(More)
In this paper we investigate the performances of the EFCI-based (Explicit Forward Congestion Indication) and ER-based (Explicit Rate) algorithms for the rate-based flow control of the ABR (Available Bit Rate) traffic in an ATM network. We consider the case of two switches in tandem. We present several definitions of bottleneck, and provide conditions that(More)
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