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The increased complexity resulting from computer networks technologies, devices and application diversity combined with the continuously growing service demands from users, requires a computer network that offers adequate treatment and support to multiservice (Voice, Video, Web Applications) and Quality of Service (QoS) requirements. This management scenario adds complexity to human administration even with the adoption of Policy-Based Management (PBM) systems. In effect, the effectiveness and efficiency of the management model is, typically, directly related with the knowledge and skills of the administrator in order to define a policy database that meets all possible states.
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