AbsrrwZ-The pervasive influence of the internet as long as the insatiable desire for bandwidth have led the researchers to promote massive and disruptive changes within the Internet technology. The end goal is to enable the rapid development of a wide variety of services and support them in a unified and consistent manner. As far as the customer view is concerned, means for specifying dynamically the services each customer wishes to be subscribed offered by an ISP are needed. Moreover an IP QoS signaling protocol is reqnired in order for the customer to activate added value services. We propose system architecture far dynamic service subscription based on a negotiation strategy and an approach for explicit activation of services. These models offer the customcran automated manner to specify, select, negotiate, activate and make use of added value services with specific characteristics. The novelty of the proposed approach is the reduction of the operational cost of an ISP and the time necded far a customer to request and access scrvircs.
Although QoS provision has been researched extensively for B-ISDN (ATM based) networks and it is also under research for IP networks (Internet), until recently there was no real service environment to provide such QoS to end users. Demonstrators and laboratory experiments aimed mainly at proving specific technologies and architectures. Recent advances in the commercialisation of technology and respective standardisation effort have changed the scenery. End to end networks, capable of QoS support, are in a maturity status that will enable commercial deployment within the next few years. Still, there are no applications to take advantage of such services. It would be most desirable to enhance the way users use current applications (such as the established WEB browser), than to try to introduce new application S/W. This paper proposes a method based on the Open Service Gateway initiative (OSGi) specification [1] that enables the Quality of Service (QoS) for bandwidth demanding applications such as multimedia applications, by introducing S/W modules as enhancements into the existing applications. This method targets to the end-user, when using the network topology that is being standarised by the Full Service Access Network (FSAN) [2].
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