期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2014
卷号：3
期号：12
页码：9643-9646
出版社：IJECS
摘要：In every network we see the link failures are common. For this purpose, we propose networks having the scheme to protect theirlinks against the link failures. Networks use link protection to achieve fast recovery from link failures. While the first link failure can beprotected using link protection (or defining back up node), there are several alternatives for protecting against the second failure. Weformally classify the approaches to dual-link failure resiliency. One of the strategies to recover from dual-link failures is to employ linkprotection (or back) for the two failed links independently, which requires that two links may not use each other in their backup paths if theymay fail simultaneously. Such a requirement is referred to as backup link mutual exclusion (BLME) constraint and the problem ofidentifying a backup path for every link that satisfies the above requirement is referred to as the BLME problem due to finding new link thesenders time is out and we have the problem of packet loss. In this we use Backup link mutual exclusion (BLME), when the links failsimultaneously. The solution methodologies for BLME problem is 1).for mulating the backup path selection as an integer linearprogram;2)developing a polynomial time heuristic based on minimum cost path routing.
关键词：Backup link mutual exclusion; dual-link failures; link protection; optical networks
