Principles of ATM topology design and cost modeling

It is highly important to design a cost effective topology of the ATM network that will support the long term forecast of broadband services. A conceptual approach towards such a design is presented in the paper, which includes the basic topological model and its major parameters. Emphasis is given to the development of a cost model of an ATM network. The costing methodology and assumptions are covered, followed by a discussion of findings and sensitivity analysis. The conclusions are that the cost of the switch access transport and cloud is relatively minor, as compared to the cost of the switching equipment and the special access lines. Another conclusion emphasizes the need for usage based tariffs.