Path management method for large-scale MPLS networks from viewpoint of operational cost factors
by Motoi Iwashita; Masayuki Tsujino
International Journal of Internet Technology and Secured Transactions (IJITST), Vol. 4, No. 2/3, 2012

Abstract: The recent improvements in broadband networks are enabling network carriers and providers to provide multiprotocol label switching (MPLS)-based dedicated services for enterprise customers. These dedicated services will be widely introduced in interconnected networks to meet the demand of enterprise customers. Since end-to-end connection will be more complicated in interconnecting large-scale networks, path (end-to-end route) management will be important to enable quick reaction to failures to ensure customer satisfaction. We propose a path management method in MPLS networks combined with the following two methods: 1) a method in which a link stores an adjacent link identifier, and the edge node identifier is stored at an edge link. Here, the edge link means the link that connects to an edge node, which label switched paths (LSPs) cannnot bypass; 2) a method in which all links store edge node identifiers. The proposed method is evaluated in terms of operational cost factors for the ability to search for users whose service has failed and the ease of changing managed objects in interconnected networks. Moreover, field application of the proposed method is discussed.

Online publication date: Sat, 09-Aug-2014

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