Survivable routing strategy in IP over WDM networks

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (18): 81-83.

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Survivable routing strategy in IP over WDM networks

ZHANG Li1, ZHANG Ning2, LI Zhinan1

1.Institute of Communication Engineering, PLA University of Science and Technology, Nanjing 210007, China
2.PLA Communication Network Technology Management Center, Beijing 100840, China

Online:2012-06-21 Published:2012-06-20

IP over WDM网络中可生存的路由选择策略

张丽1，张宁2，李智楠1

1.中国人民解放军理工大学通信工程学院，南京 210007
2.总参通信网络技术管理中心，北京 100840

Abstract

Abstract: In IP over WDM networks, the failure of a physical fiber may leave the virtual topology unconnected, which will make the restoration of infected traffic in the IP layer impossible. This problem must be avoided during design of virtual topology. SVTMA proposed in this paper applies load-balancing strategy. It can not only ensure survivability of the network, but also conform to capacity constraint. Simulation results show that compared with SMART algorithm, SVTMA needs fewer wavelengths and can distribute the load in a more balanced way.

Key words: IP over WDM, single link-failure, load balance, survivability

摘要： 在IP over WDM 网络中，单链路故障可能会使虚拓扑变得不连通而导致IP网络无法恢复受损业务，在设计虚拓扑时必须避免这种情况。SVTMA算法采用负载均衡策略，在保证网络生存性的同时，严格遵守物理链路的容量限制。实验表明，使用SVTMA算法进行虚拓扑设计所需的波长数小于SMART算法所需的波长数，使得整个网络的负载分布更加均衡。

关键词: IP over WDM, 单链路故障, 负载均衡, 生存性

ZHANG Li1, ZHANG Ning2, LI Zhinan1. Survivable routing strategy in IP over WDM networks[J]. Computer Engineering and Applications, 2012, 48(18): 81-83.

张丽1，张宁2，李智楠1. IP over WDM网络中可生存的路由选择策略[J]. 计算机工程与应用, 2012, 48(18): 81-83.

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Survivable routing strategy in IP over WDM networks

IP over WDM网络中可生存的路由选择策略

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