(The core of the intelligent optical network is to clearly propose the control plane of the optical transport network. The management of the connection configuration is terminated through the control plane method and the switching ability of the signaling control is introduced. Therefore, the signaling protocol of the control plane is particularly important for the intelligent optical network. Important t (on the other hand, the actual end of the intelligent optical network also requires a series of supporting key technologies related to the optical network, such as tunable lasers and optical packet switching, etc.))