Optical transmission system and wavelength allocation method

Abstract

[Problem] In a disaggregated optical transmission system formed by connecting bases including transmission apparatuses having specifications of different vendors through an optical fiber, wavelength information is easily set in the transmission apparatuses at both bases of the optical fiber such that the required wavelength is assigned to the optical fiber. [Solution] The optical transmission systemincludes a facility DBthat stores at least information on the NW configuration in which a predetermined optical signal wavelength is assigned to the optical fiber, a wavelength assignment unitthat, if the facility DBstores no information on the same NW configuration as a NW configuration that the wavelength assignment request to the optical fiberbetween bases has, associates a management number with a wavelength commonly available for different vendors, based on vendor information in which management numbers and wavelengths of vendors are associated, and further if this wavelength is assignable to the optical fiber, performs a wavelength assignment instruction by using the management number, and a wavelength setting unitthat performs wavelength assignment setting in the transmission apparatuses at both bases of the optical fiberin response to the wavelength assignment instruction.