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Policy-based network management

Depending on the context, a policy can be a paper document, a table for selecting options, a sequence of logical assertions to automate operational decisions, or a tool to articulate business goals and service priorities and facilitate decisions in enforcing business rules and service priorities. In this paper, we will analyze these aspects of policies and show how they relate to each other. We will also analyze industry practices, examine applicable standards, and explore some advantages that a policy-based system can offer in such areas as network management, quality of service (QoS), and network security.