One of the key selling points of the next-generation network (NGN) With current planning methods, it is difficult to predict the level of NGN traffic, making difficult both the design of initially deployed networks and the planning for capacity growth needs. At the control layer, the NGN architecture is quite complex, individual functions are highly distributed, and there is great flexibility in the way the architecture can be implemented. The distributed nature of the architecture requires many intersystem messages, and several different protocols. At the bearer layer, multiple applications with very different traffic profiles and quality of service (QoS) requirements must share the same infrastructure.We have created a method called application characterization and traffic modeling (ACTM) to assist network operators in planning their NGN to meet their traffic forecasts and QoS requirements. ACTM
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