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提出当今解决光传送网所面临问题的方法,是采用既能低成本建网又能智能化完成交换连接的自动交换光网络( ASON );介绍回顾了光传送网 ASON 技术的产生和取得的成果,以及 ASON 中几种关键控制平面技术的发展情况;阐述了 ASON 控制平面与传统传送网的本质区别、管理平面智能化管理特点所带来的 3 种优点,以及传送平面中光交叉连接( OXC )的 6 种主要交换结构、发展方向和存在的主要问题;最后综述了新一代基于数字同步系列(SDH )提供多种业务、集成传输、交换和路由功能的多业务传送平台(MSTP )技术,并描述其新功能和远期目标。
It is put forward that the solution to the problem of optical transport network today is to use ASON which can exchange connections with low cost and intelligentize. This paper reviews the production and the achievements of optical transport network (ASON) technology , And the development of several key control plane technologies in ASON. The essential differences between the ASON control plane and the traditional transport network, the three advantages brought by the management plane intelligent management features, and the optical cross-connect (OXC ) Are discussed in detail. Finally, a new generation of Multi-Service Transport Platform (MSTP) technology based on SDH to provide multiple services, integrated transmission, switching and routing functions is reviewed. And describe its new features and long-term goals.