在比较了ASON与传统网络的路由区别之后,提出了基于GMPLS的ASON路由体系结构,对其中关键的模块——约束路由进行了分析,重点描述了受限最短路径优先(CSPF)算法的原理与实现过程,并进行了仿真,验证了该算法在重路由选择上的有效性。
This paper first lists the differences between the ASON and traditional networks, then puts forward the routing architecture of GMPLS-based ASON, and analyses the constraint-based routing module, the key module in the architecture, emphases on the principles of CSPF algorithm. Finally simulates the algorithm to be validity in ASON.