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Network State Information Database(NSID) for GMPLS The Role of NSID Required to implement the network architecture for network models that introduce the control element of IP and to optimize the utilization of network resource. The aspect of Resource oriented Considering factors Should consider not only the utilization status of network resources but also the optical characteristics of wavelength connections and signal quality The adaptation scheme of NSID for overlay & Integrated Model Overlay Model : Distributed management Integrated Model : Centralized management Definition of Common attribute and each attribute's components |