Abstract: It is introduced that the concept of OTN node route model. It is also discussed that on the requirements of the OTN node route model and why we define this concept. The matrix and graph forms of the model are demonstrated. The two forms are compared with each other. At last, it is given that several examples and explain how to find the matrix and graph forms through these examples.

Key words: optical transport network, route model, optical cross-connect, optical add/drop multiplexer

摘要： 提出了光传送网节点路由模型的概念，讨论了节点路由模型应达到的要求和建立模型的意义；给出了普适的矩阵表示法和针对节点具体结构的图表示法；并讨论了两种方法各自的优缺点。最后针对实际的光传送网节点给出了几个例子，并通过这些例子说明了路由模型矩阵表示和图表示的求法。

关键词: 光传送网, 路由模型, 光交叉互连, 光分/插复用