Abstract
Computer simulation modelling has the advantage of flexibility and modelling accuracy. However, it has limitations in its ability to be used to simulate cell loss rate when deriving the optimum resources required for data services to guarantee specific Quality of Service (QoS) requirement. Cell loss rates are simulated with excessive and unacceptable computer simulation run times. This limitation was overcome in an earlier publication by the author using an integrated simulation technique. This paper, therefore, describes the application of the integrated simulation technique for deriving the optimum resources required for data services in an asynchronous transfer mode (ATM) based private wide area network (WAN) to guarantee specific QoS requirement. The simulation tool drastically cuts the simulation run-time and is much more accurate. The effectiveness of the technique with data services is demonstrated by the simulation of an ATM switching node and in comparison with traditional approach. Keywords: Asynchronous transfer mode node; integrated modelling; simulation; Cell loss
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