A Paper on Simulation Model for Evaluating the Performance of ATM Network
The major benefit of ATM is flexibility in transmitting communication services that have different traffic characteristics. In order to exploit this capability with high efficiency and still guarantying a required grade of service the problem of traffic control must be solved Traffic control is basically required when there is high degree of congestion. Congestion usually occurs when the input rate is greater than the total link capacity. All service classes in ATM are handled in same manner as a result design and dimensioning of ATM network has to be carried out according to quality of service requirements. Such an approach will lead to poor utilization of network resources. As a solution to this by queuing model all the cells from certain service class are assigned to the same class. The ATM network handles cells of different classes in different way to provide different services with different quality of service requirements.
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