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A Restoration Method Using Duplication Paths in MPLS Networks  

Kim, Eung-Ha (ETRI, Network Engineering Technology Team)
Cho, Young-Jong (Ajou University, Division of Information and Computer Engineering)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.39, no.11, 2002 , pp. 1-11 More about this Journal
Abstract
To increase network survivability and to guarantee reliable services in MPLS networks, when failures occur either at any link or node of a working path, traffics on the failed path should be switched to other restoration paths. In this paper, we propose a path restoration method using duplication of working paths for link failure and its associated failure detection method, which utilizes OAM cells when all the duplicated links or nodes of the path failed. We analyze the performance of the proposed restoration method and show that especially the method is very efficient to restore high priority traffics. Also, through simulation we prove that the proposed restoration method is superior in performance to several existing methods suggested so far.
Keywords
Restoration; Duplication; MPLS; ATM; OAM;
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