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分析了ＳＤＨ传送网的局限性，结合光传送网的发展趋势，较详细地介绍和深入解析了智能光传送网的结构模型、功能和控制平面技术，探讨了智能光传送网演进中技术的问题。
The limitations of SDH transmission network are analyzed. Combined with the development trend of optical transmission network, the structure model, function and control plane technology of intelligent optical transport network are introduced in detail and discussed in detail, and the technical problems in the evolution of intelligent optical transport network are discussed .