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On The Design Of Resource Management Domains

In this paper, we discuss network design issues, which arise when domain-based resource management systems are introduced in existing IP networks. In order to achieve scalability, these systems require large networks to be divided into domains, which are then administered individually. We focus on resource management concepts, where admission control is performed per domain by dedicated devices in a central manner. Thus, two important issues, which have to be solved when installing such a system in an operating network, are network partitioning and placement of control units. For both problems algorithms are presented. The network partitioning problem is formulated as a mixed-integer program, which can be solved optimally for small and mediumsize networks. For larger networks, a multilevel greedy heuristic in combination with a simulated annealing framework is proposed. Furthermore, a greedy algorithm is presented to find the locations of the control units within their domain. For both tasks, signaling-related aspects are taken as optimization criteria.