H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 14/02 (2006.01) H04B 10/20 (2006.01)
Patent
CA 2276377
The present invention relates to an optical network. An optical network in accordance with the present invention comprises at least: a plurality of transmission equipment components; and optical paths which connect said plurality of transmission equipment components to one another, wherein said optical paths are assigned wavelengths of predetermined transmission light and at least a transmission frame having overhead information is used to perform digital transmission, and wherein said overhead information has switching control information about a failure, and wherein each said transmission equipment component has memory means constituting a wavelength address map for storing therein at least information of wavelength addresses on said respective optical paths and failure information on said respective optical paths, and is constructed such that when a failure occurs in a working optical path, optical-path switching is done based on the switching control information about the failure, the wavelength address information and the failure information on the optical paths.
Ikeda Hiroki
Kanetake Tatsuo
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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