A novel double-link failure protection algorithm in WDM mesh networks

被引:0
|
作者
Guo, L [1 ]
Yu, HF [1 ]
Zhou, T [1 ]
Li, LM [1 ]
机构
[1] Univ Elect Sci & Technol China, Key Lab Broadband Opt Fiber Transmiss & Commun Ne, Chengdu 610054, Peoples R China
关键词
WDM mesh networks; double-link failures; share risk link group (SRLG);
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
We propose a novel shared sub-path protection algorithm (SSPP) to completely protect double-link failures in WDM mesh networks on the condition that all links are assumed to be share risk link group (SRLG) disjoint. SSPP firstly searches a primary path for each connection request and then segments the primary path into several equal-length sub-paths and searches two SRLG-disjoint backup paths for each sub-path. Under dynamic traffic with different load, the performances of SSPP are simulated. The results show that SSPP not only can completely protect double-link failures but also can make the tradeoffs between resource utilization (blocking ratio) and protection-switching time.
引用
收藏
页码:120 / 123
页数:4
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