Patent ID: 9154257
Filing Date: 2015-10-06
Classification: H04J,H04L

Abstract:
1. A frequency assignment method for selecting a frequency width used on a route connecting between a start point and an end point when the start point and the end point of an optical signal are supplied in a photonic network including an optical node that includes an optical switch for switching the optical signal without electrically terminating the optical signal, in an apparatus comprising: a calculation result storage unit configured to store a calculation result of a route and a frequency; a router unit configured to perform route calculation and store the route calculation result in the calculation result storage unit; and an assignment unit configured to assign a frequency width of the network, the method comprising: in the assignment unit, referring to the route calculation result of the calculation result storage unit, obtaining a correlation amount of use state of wavelength or frequency between adjacent links, determining a fixed frequency width or variable frequency width to be set for a communication route based on the correlation amount, and assigning the fixed frequency width or the variable frequency width on the route.