Insights for segment protection in survivable WDM mesh networks with SRLG constraints

被引：0
|
作者：
Hongbin Luo
Lemin Li
Hongfang Yu
机构：
[1] University of Electronic Science and Technology of China,School of Communications and Information Engineering
[2] Beijing Jiaotong University,School of Electronics and Information Engineering
来源：
Photonic Network Communications | 2007年 / 14卷
关键词：
Wavelength division multiplexing (WDM); Shared risk link group (SRLG); Survivability; Mesh networks; Segment protection;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Segment protection has been recognized as an efficient way to avoid “traps” in survivable WDM mesh network. In this article, 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.
引用
收藏
页码：361 / 368
页数：7
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