Invention Grant
US07936749B2 Node device for transfering supervisory control information in photonic network 有权
用于在光网络中传输监控信息的节点设备

Node device for transfering supervisory control information in photonic network
Abstract:
A node device receives supervisory control information on a dedicated wavelength different from a wavelength of signal light, which is input from an input port together with the signal light, and extracts, from signal light to be output from an output port, information superposed on an optical main signal of the signal light. Then, it is confirmed whether or not the signal light to be output and the supervisory control information correspond by using the extracted information, and supervisory control information corresponding to the signal light to be output is transmitted on the dedicated wavelength from the output port.
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