光交换是一种宽带交换技术。
从技术结构分类的角度对宽带传输网、宽带交换网和宽带接入网的组成、特点及优势进行了阐述。
This paper expounds the components, features and advantages of the broadband transport network, broadband exchange network and broadband joint network from the Angle of the technical structure.
通用多协议标记交换（GMPLS）技术的出现，为高速宽带光网络的实现提供了一种新的方式。
The emerging GMPLS technology provides a new means of realizing the high-speed broadband optical network.
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