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随着信息系统的发展,对于网络支撑层转发效率、传输时延等指标的要求也日益提高。但是传统的路由体制无法从根本上提升数据转发的效率和缩小时延,经过多年反复的实践检验,从体系结构、信令协议多方面的演变,产生了标记交换技术。经过近15年的发展,标记交换最终归于IETF的MPLS。文章主要集中讨论使用标记交换技术构建交换式路由网络时体系框架的论证和具体的技术设计实施。
With the development of information system, the requirements for indicators such as network support layer forwarding efficiency and transmission delay are also increasing. However, the traditional routing system can not fundamentally improve the efficiency of data forwarding and reduce the delay. After many years of repeated tests, the label switching technology has evolved from various aspects of architecture and signaling protocols. After nearly 15 years of development, the mark exchange finally belongs to IETF MPLS. The article mainly discusses the demonstration of the framework of the system when using the label switching technology to construct the switched routing network and the specific technical design and implementation.