Fast restoration scheme for MPLS-TP enabled optical multicast  

作　　者：白晖峰 陆月明 纪越峰 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Beijing University of Posts and Telecommunications

出　　处：《Chinese Optics Letters》2010年第11期1043-1046,共4页中国光学快报（英文版）

基　　金：supported by the National"863" Program of China(Nos. 2009AA01Z255 and2009AA01A345);the National "973" Project of China(No. 2007CB310705);the National Natural Science Foundation of China(No. 60932004);the Specialized Research Fund for the Doctoral Program of Higher Education of China(No. 200800130001)

摘　　要：To improve the restoration performance of a multicast service of multi-protocol label switching transport profile （MPLS-TP） enabled optical network,this letter proposes a local-node initiated fast restoration （LNIFR） scheme for MPLS-TP optical multicast service.The proposed scheme allows the local node to establish a segment of fast loopback label switch path by the local node along the upstream of the failed node or link to the nearest downstream node.The fast restoration of optical multicast trees is realized through this part restoration,which focuses on failed node or link.Simulation analysis and results demonstrate that the new scheme outperforms the other schemes in terms of restoration time and success rate.To improve the restoration performance of a multicast service of multi-protocol label switching transport profile （MPLS-TP） enabled optical network,this letter proposes a local-node initiated fast restoration （LNIFR） scheme for MPLS-TP optical multicast service.The proposed scheme allows the local node to establish a segment of fast loopback label switch path by the local node along the upstream of the failed node or link to the nearest downstream node.The fast restoration of optical multicast trees is realized through this part restoration,which focuses on failed node or link.Simulation analysis and results demonstrate that the new scheme outperforms the other schemes in terms of restoration time and success rate.

关 键 词：Fiber optic networks MULTICASTING Network protocols 

分 类 号：TN929.1[电子电信—通信与信息系统]