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Abstract

Methods for allocating blocks of addresses to nodes in an IP communications network determine an optimal set of serving subnets, referred to as resources, for a single node in an IP communications network with given input demands for blocks of addresses. An optimal set of resources is determined at the node to a relaxed problem that aggregates all the demands to a single large demand and deletes the constraints that each demand must be assigned to a single resource. Each of the original demands is then assigned to a single resource from among those determined by the solution to the relaxed problem. The methods can also be used to allocate new resources to nodes that already have existing resources, and to allocate subnets at all nodes in a tree network by solving repeatedly single-node problems.

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First Claim