多粒度光网络故障定位  

Multi-granular Network Failure Localization

作　　者：崔贺[1] 田军[1] 

机构地区：[1]西安邮电学院通信与信息工程学院,陕西西安710061

出　　处：《通信技术》2011年第4期112-113,120,共3页Communications Technology

摘　　要：多粒度光网络中多种粒度光通道的存在,任何故障均会造成网络服务质量的降低。一方面多粒度光网络具有单粒度光网络故障传播的特性;另一方面多粒度光网络的故障又分为不同的层,每一层对应一种类型的故障。通过对多粒度光网络光通道、光节点的分析,抽象出可告警不同粒度故障的物理信道模型,并将二叉树算法应用在模型中,实现故障位置和故障粒度的定位,并且对网络拓扑结构没有特殊的要求。Any fault in multi-granular network with multi-granularity light paths could result in the decrease of network QoS.On the one hand,multi-granularity network is of the same failure propagation as the single-granularity optical network,on the other hand,failures in the multi-granularity network are divided into various layers corresponding to different types of failure.Through analyzing the light path and structure of the multi-granular network node,the physical channel model capable to alarm the network failures of different granularities is abstracted.The algorithm based on the binary tree algorithm could determine both the location of the failure and failure granularity,and thus is applicable to any network topology.

关 键 词：多粒度光网络 故障定位 告警 二叉树算法 

分 类 号：TN915.07[电子电信—通信与信息系统]