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Intelligent optical network (ION) is deemed the representation of next generation optical networks, which can realize fast establishment of connections, automatic resource discovery, traffic engineering and many other intelligent functions. Compared with traditional network management, ION management has some new characteristics due to the introduction of intelligent control plane and deserves deeper research. In this paper, we proposed an inter-domain layered ION management system scheme dealing with the multi-domain network environment. And the management information models designed for ION are presented, especially that for the control plane and three connection types. Then we discuss the key technologies, which we use to implement the ION management system, for instance DML, Java and CORBA. At last, the simulation results of the ION management system are showed.