Active dynamic pre-protection mechanism for MPLS-TP network  

作　　者：白晖峰 Ji Yuefeng 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, P. R. China

出　　处：《High Technology Letters》2011年第4期354-359,共6页高技术通讯（英文版）

基　　金：Supported by the National High Technology Research and Development Program of China（No. 2009AA01Z255, 2009AA01A345）, the National Basic Research Program of China（No. 2007CB310705 ） and the National Natural Science Foundation of China（No. 60932004）.

摘　　要：The active-fault-alarm （AFA） technologies and the dynamic protection mechanism of the optical network controlled by the multi-protocol label switching transport profile （MPLS-TP） are both studied in this article. On this basis, an active dynamic pre-protection （ADPP） mechanism is proposed. This active dynamic pre-protection mechanism is allowed to establish a so called temporary protection path （TPP） for the work path before a potential fault occurs and to switch to TPP only after the fault occurs. It keeps the TPP flexibly only when it is in low- quality or fault state to realize dynamic protection even better and to achieve better resource utilization. Simulation results show that the proposed new mechanism has better performance in terms of the flexibility and the efficiency from the perspective of time.

关 键 词：multiple protocol label switching transport profile （MPLS-TP） active-fault-alarm （AFA） network protection 

分 类 号：TN929.1[电子电信—通信与信息系统] TN915.04[电子电信—信息与通信工程]