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Abstract

A demand accommodation design system for accommodating a demand specifying a signal transmission route from a start-point node to an end-point node within an optical network includes an analytical unit to acquire at least one optical path candidate for minimizing cost of the optical network by solving an objective function incorporating cost of optical path candidates by bandwidth, the optical path candidate being a candidate for an optical path composing a demand, and a mathematical programming problem employing a constraint condition incorporating a bandwidth of an optical path pattern candidate connecting the start-point node and the end-point node of the demand and a bandwidth of the acquired optical path candidate, the optical path pattern candidate being the acquired optical path candidate itself or being obtained by combining the optical path candidates, and an allocation unit to allocate the demand to the acquired optical path candidate to accommodate the demand.

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