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城域网的建设方兴未艾,网络建设方案也随着新设备的出现而不断优化。该文提出了目前城域网建设中传送层规划设计的几种可行方案,比较了各自的优缺点及应用场合,并讨论了相关的技术问题。
The construction of metropolitan area network is in the ascendant and the network construction plan is continuously optimized with the appearance of new equipment. In this paper, several feasible schemes of transport layer planning and design in metro network construction are proposed, their advantages, disadvantages and applications are compared, and the related technical problems are discussed.