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By utilizing Layer-1 Virtual Private Networks (L1VPN), a single physical network, e.g., an optical backbone network, can support multiple virtual networks, which form the basic infrastructure for cloud computing and other enterprise networks. The L1VPN hose model is an elegant and flexible way to specify the customers’ bandwidth requirements, by defining the total incoming and outgoing demand for...
The Virtual Private Networks (VPN) optimal bandwidth allocation problem with tree topology has been widely discussed in the literature. Most of the algorithms proposed by researchers to solve this problem use approximation schemes. In this paper, we propose an exact and efficient Branch-and-Cut algorithm for the problem in the context of a hose workload model. In particular, we consider the case when...
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