| The exponential growth in data traffic is serving as a catalyst for the public network to evolve from a static, voice-centric infrastructure to a dynamic infrastructure.The legacy SDH network architecture was originally designed to transport voice traffic, not high-speed data network services. Voice traffic is predictable and characterized by slow growth. In contrast, data traffic is unpredictable and characterized by rapid growth. In order to quickly scale to meet this unpredictable demand for bandwidth, carriers begin to think about deploying intelligent optical networks.The Automatic Switched Optical Network(ASON) based intelligent optical network enable service providers to quickly provision services and dramatically reduce their time to revenue from months to minutes. Through the control plane, this new network can manage resource flexibly.This thesis made a comprehensive and systematic research on the architecture of intelligent optical network. Based on this research, the evolution of the legacy network to the intelligent network is studied. The architecture and service demand of the CNC's network is analyzed, a practical way for the legacy network evolve to intelligent optical network is given. The actual network of Liaoning & Dalian Network Communication are studied, and the service demands and feasible... |
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