MPLS技术及在电力通信网中的应用

MPLS技术是近年来提出的一种实现IP over ATM的较好方案，就MPLS的产生背景、基本原理、框架结构，关键技术等展开叙述。MPLS的技术融合了IP技术和ATM技术的各自有点，可以保证如语音传递，视频服务、多媒体信息传输等新应用业务按各应用的特性正确予以传递，MPLS网络中数据的传输靠标签引导，标签是固定长度的，无结构的值。采用MPLS流量工程可以避免引起网络阻塞为用户提供更好的服务。该文最后针对电力系统关键业务对传送性能的要求，阐述了如何在电力通信网中利用MPLS技术传送关键业务。

Applications of MPLS technology in electric power communication networks

MPLS technology is the best alternative method that can realize the idea of IP over ATM in recent years. This paper describes the backgrounds of MPLS, the rationale of MPLS, the framework of MPLS and its key technology. MPLS takes advantages of both IP and ATM, enabling the sound, video and multimedia information to be transferred correctly. MPLS uses the label to ensure the data transferred credible. The label is some fixed length digit that has no framework. In the end, this paper expounds a method aimed at utilizing MPLS in electric power communication networks based on the demands of key operations of electric power systems.