Insights for Segment Protection in Survivable WDM Mesh Networks with SRLG Constraints

被引:0
作者
Luo, Hongbin [1 ]
Li, Lemin [1 ]
Yu, Hongfang [1 ]
机构
[1] Univ Elect Sci & Technol China, Key Lab Broadband Opt Transmiss & Commun Networks, Chengdu 610054, Peoples R China
来源
GLOBECOM 2006 - 2006 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE | 2006年
关键词
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暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Segment protection has been recognized as an efficient way to avoid "traps" in survivable WDM mesh network. In this paper, we present some insights on this kind of protection. We first prove the correctness of segment protection used for avoiding traps. We then investigate the effect of the number of segments on the blocking performance in several typical real networks (includes middle and large networks). We find that, in most cases, it is sufficient to use two backup segments to protect a given active path. Based on this observation, we then propose a novel and efficient segment protection algorithm, called two-segment (TS), which has a lower computational complexity and comparative performance than existing algorithms.
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页数:5
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