Optical wavelength path rearranging method, computer product, optical transmission managing apparatus, and optical transmission apparatus

Patent metadata

Field	Value
Publication number	US-9344214-B2
Application number	US-201414155738-A
Country	US
Kind code	B2
Filing date	Jan 15, 2014
Priority date	Mar 26, 2013
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

An optical wavelength path rearranging method includes detecting time that elapses since a setting of optical wavelength paths in an optical wavelength division multiplexing network; and moving to a predetermined long-period optical wavelength range, an optical wavelength path that is among the optical wavelength paths and for which the detected elapsed time is long, where the optical wavelength path rearranging method is executed by a processor.

First claim

What is claimed is:

1. An optical wavelength path rearranging method comprising:
setting an optical wavelength path to a newly-set-path optical wavelength range in an optical wavelength division multiplexing network;
detecting time that elapses since the setting of the optical wavelength path; and
moving to a predetermined long-period optical wavelength range different from the newly-set-path optical wavelength range, the optical wavelength path for which the detected elapsed time is longer than a predetermined constant period, wherein
the optical wavelength path rearranging method is executed by a processor.

2. The optical wavelength path rearranging method according to claim 1 , further comprising
suspending movement of the optical wavelength path, when the optical wavelength path cannot be moved to the predetermined long-period optical wavelength range, wherein
the moving includes moving the optical wavelength path to the long-period optical wavelength range, according to an occurrence of a vacancy of a movement destination optical wavelength within the long-period optical wavelength range.

3. The optical wavelength path rearranging method according to claim 1 , further comprising
comparing information concerning an optical wavelength of the optical wavelength path and a transmission section of the optical wavelength path against information concerning an available optical wavelength within the long-period optical wavelength range and the transmission section, wherein
the moving includes moving the optical wavelength path to the available optical wavelength and the transmission section capable of accommodation.

4. A non-transitory, computer-readable recording medium that stores an optical wavelength path rearranging program that causes a computer to execute a process comprising:
setting an optical wavelength path to a newly-set-path optical wavelength range in an optical wavelength division multiplexing network;
detecting time that elapses since the setting of the optical wavelength path; and
moving to a predetermined long-period optical wavelength range different from the newly-set-path optical wavelength range, the optical wavelength path for which the detected elapsed time is longer than a predetermined constant period.

5. The recording medium according to claim 4 , further comprising
suspending movement of the optical wavelength path, when the optical wavelength path cannot be moved to the predetermined long-period optical wavelength range, wherein
the moving includes moving the optical wavelength path to the long-period optical wavelength range, according to an occurrence of a vacancy of a movement destination optical wavelength within the long-period optical wavelength range.

Assignees

• Fujitsu Ltd

Inventors

• Wakabayashi Jun

Classifications

• H04J14/0238

  Wavelength allocation for communications one-to-many, e.g. multicasting wavelengths · CPC title

• H04J14/0227

  Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation · CPC title

• H04J14/0254

  Optical medium access · CPC title

• H04J14/0257 Primary

  Wavelength assignment algorithms · CPC title