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1、引言光传送网经历了从链形到环形再到Mesh的变化。这种组网方式的变化,对光传送网的规划提出了新的要求。尤其是随着ASON技术的逐渐应用,我们经常会遇到环网和MESH混合的复杂结构、客户有区分级别的业务要求、网络业务量成倍增长的情况。这使得采用传统人工方式进行网络拓扑和业务规划已经力不从心。因此部分厂商开始着眼于光传送网规划软件的开
1, Introduction Optical transport network has gone through from the chain to the ring and then to Mesh changes. This change of networking mode puts forward new requirements on the planning of optical transport network. Especially with the gradual application of ASON technology, we often encounter the complex structure of the ring and MESH mixed, customers have different levels of business requirements, network traffic doubled. This makes the use of traditional manual methods for network topology and business planning have been unable to do anything. Therefore, some manufacturers began to focus on optical transport network planning software to open