SIGNAL REPEATER, NODE DEVICE, NETWORK SYSTEM, VIRTUAL LINK CREATION METHOD, AND VIRTUAL LINK CREATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To automatically set a route (path) of a signal transmitted through a network even when there is constraint of a link which can branch in a signal branching device constituting the network.;SOLUTION: A ROADM (Reconfigurable Optical Add Drop Multiplexing) device creates link information including information of a virtual link which is virtually connected to a link transmitting the signal from a node device and a ROADM device link which can branch the signal in a case that the signal transmitted using the link is carried using the WDM (Wavelength Division Multiplexing) network, and transmits the created link information.;COPYRIGHT: (C)2008,JPO&INPIT