tailieunhanh - Pricing communication networks P3

Công nghệ mạng Chương này mối quan tâm chung của các khía cạnh công nghệ mạng rất quan trọng trong việc cung cấp dịch vụ vận tải và cho họ những phẩm chất nhất định của hiệu suất. Chúng tôi xác định một tập hợp các hành động kiểm soát và khái niệm chung chung được triển khai trong mạng lưới thông tin liên lạc ngày nay. Mục đích của chúng tôi là để giải thích hoạt động của công nghệ mạng và những vấn đề của mô hình phân bổ nguồn lực rất quan trọng trong đại diện cho một. | Pricing Communication Networks Economics Technology and Modelling. Costas Courcoubetis and Richard Weber Copyright 2003 John Wiley Sons Ltd. ISBN 0-470-85130-9 3 Network Technology This chapter concerns the generic aspects of network technology that are important in providing transport services and giving them certain qualities of performance. We define a set of generic control actions and concepts that are deployed in today s communication networks. Our aim is to explain the workings of network technology and to model those issues of resource allocation that are important in representing a network as a production plant for service goods. In Section we outline the main issues for network control. These include the timescale over which control operates call admission control routing control flow control and network management. Tariffing and charging mechanisms provide one important type of control and we turn to these in Section . Sections and describe in detail many of the actual network technologies in use today such as Internet and ATM. We relate these examples of network technologies to the generic control actions and concepts described in earlier sections. In Section we discuss some of the practical requirements that must be met by any workable scheme for charging for network services. Section presents a model of the business relations amongst those who participant in providing Internet services. Network control A network control is a mechanism or procedure that the network uses to provide services. The more numerous and sophisticated are the network controls the greater and richer can be the set of services that the network can provide. Control is usually associated with the procedures needed to set up new connections and tear down old ones. However while a connection is active network control also manages many other important aspects of the connection. These include the quality of the service provided the reporting of important .