Patent ID: 7756045

Claim:
An optical signal transmission network management system for connecting a plurality of optical signal transmission lines to each other to set an optical signal transmission route comprising the connected optical signal transmission lines, the system comprising: nodes, each individual one of which is placed among the optical signal transmission lines and connected to the optical signal transmission lines by ports employed in the individual node; and a management apparatus for giving a command to each individual one of the nodes to connect the optical signal transmission lines wired to the ports employed in the individual node; wherein each individual one of the nodes includes: a line-setting unit capable of setting a data transfer route between any two of the ports employed in the individual node; a first control unit for giving a command to the line-setting unit to set a data transfer route between first and second ones of the ports employed in the individual node in accordance with a command received from the management apparatus; and a signal-type storage unit for storing information on an optical signal passing through each of at least some particular ones, which are selected among the ports employed in the individual node as particular ports including the first port; wherein the management apparatus has a second control unit for transmitting a command to a specific one of the nodes as a command requesting the specific node to set an optical signal transmission route including one of the optical signal transmission lines, which is connected to the first port; and wherein the individual node retrieves information on the type of an optical signal passing through the first port from the signal-type storage unit and transmits the information to the management apparatus.