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为实现自动光通道交换、带宽的按需分配,智能光网络必须有一套通用的标准化网络框架结构和相关的标准接口,以实现不同厂商设备之间的互连互通。标准化在传送网产业和技术发展中起着十分重要的作用,通过标准化工作的执行可以很好地实现传送网的互联互通,以及保证网络的性能等问题。一、ITU-T的标准化工作 ITU-T关于自动交换光网络的标准化工作主要由SG15负责,目前ITU-T已提出了一种基于重叠模型的自动交换光网络的结构模型——ASON,其结构如图8所示。
In order to realize the automatic optical channel switching and bandwidth allocation on demand, the intelligent optical network must have a common standardized network frame structure and related standard interfaces so as to realize the interconnection and interworking between devices of different manufacturers. Standardization plays a very important role in the development of transmission network industry and technology. The implementation of standardization can well realize the interconnection and interworking of transmission networks and ensure the performance of networks. I. Standardization work of ITU-T ITU-T standardization of auto-switching optical networks is mainly handled by SG15. At present, ITU-T has proposed a structural model of auto-switching optical networks based on overlapping models - ASON. Its structure As shown in Figure 8.