Software Engineering and Applications 软件工程与应用, 2017, 6(5), 103-110 Published Online October 2017 in Hans. /journal/sea /10.12677/sea.2017.65011 The Restoration of Multilayer Optical Network Based on Multilayer Shared Backup Router 1 1 1 2 Yuan Tang , Hanhua Huang , Ye Jiang , Xiaomei Wang 1 Electric Power Dispatch & Control Center, Guangxi Power Grid Co., Ltd, Nanning Guangxi 2 State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing th nd th Received: Sep. 8 , 2017; accepted: Sep. 22 , 2017; published: Sep. 28 , 2017 Abstract The current network is composed of optical transport network and IP network, and in the multi- layer network, network resources protection and recovery mechanism is the concern of operators. In this paper, based on the multilayer optical network architecture, a method of multilayer shared backup router is proposed to realize the protection and restoration of network resources. In the aspect of cost, compared with the traditional multilayer network protection mechanism, the final result shows that the proposed scheme has a better performance than the traditional scheme. Keywords Multilayer Optical Network, Network Restoration, Network Protection, CAPEX, Multilayer Shared Backup Router, Availability 基于多层共享备用路由器的多层网络恢复 1 1 1 2 唐元,黄汉华,蒋烨,王小梅 1广西电网公司电力调度控制中心,广西 南宁 2北京邮电大学网络与交换技术国家重点实验室,北京 收稿日期:2017年9月8 日;录用日期:2017年9月22 日;发布日期:2017年9月28 日