在通信行业飞速发展的今天,作为基础传送网重要组成部分的光传输网一直在不断演进和发展,每一次的技术革新都给它带来更为优越的网络适应性和安全性,尤其是近几年,随着标准的日益完善和技术的不断成熟,自动交换光网络(ASON)技术已经得到了业界的普遍认同,目前在很多地方都我们都能够看到ASON的建网和应用。但是,对于这种与传统 Today, the rapid development of communications industry, optical transport network as an important part of the basic transport network has been evolving and evolving, each time a technological innovation to give it more superior network adaptability and security, especially near In recent years, ASON technology has gained widespread acceptance in the industry as standards are increasingly improved and technologies mature. At present, in many places, we can all see ASON networking and applications. However, for this and tradition