Active Segment Pre-restoration Mechanism for Distributed Intelligent Optical Network  

分布式智能光网络中主动的区段预恢复机制(英文)

作　　者：白晖峰 陆月明 纪越峰 

机构地区：[1]China Electric Power Research Institute [2]Key Laboratory of Information Photonics and Optical Communications (BUPT), Ministry of Education, Beijing University of Posts and Telecommunications

出　　处：《China Communications》2011年第7期153-158,共6页中国通信（英文版）

基　　金：supported in part by National High Technical Research and Development Program of China (863 Program)under Grant No.2009AA01z255, 2009AA01A345;National Key Basic Research Program of China (973 Program) under Grant No.2007CB310705;National Natural Science Foundation of China under Grant No. 60932004;Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No.200800130001

摘　　要：The development of Internet brings a great challenge to the survivability of the supporting distributed intelligent optical networks. The emergence of Active-Fault-Alarm (AFA) technology makes it possible for the system to be aware of the incoming or possible fault in advance and to provide possibility to develop a more active restoration mechanism. On this base, an Active Segment Pre-Restoration (ASPR) mechanism for distributed optical network is proposed. ASPR allows establishing a Segment Pre-Restoration Path (SPR-Path) as a work path, which is initiated by the local node, in advance of potential fault occuring and keeps the SPR-Path only during the low-quality or fault period. Simulation results show that the ASPR mechanism has better restoration performance compared with that of Active Restoration (AR) scheme.The development of Internet brings a great challenge to the survivability of the supporting distributed intelligent optical networks. The emergence of Active-Fault-Alarm (AFA) technology makes it possible for the system to be aware of the incoming or possible fault in advance and to provide possibility to develop a more active restoration mechanism. On this base, an Active Segment Pre-Restoration (ASPR) mechanism for distributed optical network is proposed. ASPR allows establishing a Segment Pre-Restoration Path (SPR-Path) as a work path, which is initiated by the local node, in advance of potential fault occuring and keeps the SPR-Path only during the low-quality or fault period. Simulation results show that the ASPR mechanism has better restoration performance compared with that of Active Restoration (AR) scheme.

关 键 词：distributed optical network GMPLS active fault alarm RESTORATION 

分 类 号：TN929.1[电子电信—通信与信息系统]