基于距离矢量路由协议的网络故障快速恢复方法  

Fast Network Failure Recovery Mechanism Used in Distance Vector Routing Protocol

作　　者：王滨[1,2] 郭云飞[2] 张建辉[2] 兰巨龙[2] 

机构地区：[1]解放军信息工程大学电子技术学院,郑州450004 [2]国家数字交换系统工程技术研究中心,郑州450002

出　　处：《北京邮电大学学报》2010年第4期83-87,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家高技术研究发展计划项目(2008AA01A323;2008AA01Z214);国家重点基础研究发展计划项目(2007CB307102);国家科技支撑计划项目(2008BAH37B02)

摘　　要：为了有效提高距离矢量路由协议处理网络故障的能力,提高网络的可用性,提出了一种基于距离矢量路由协议的网络故障快速恢复机制,该机制包括基于预先计算生成的每目的多可行下一跳的本地重路由策略和基于网络稳定性的触发更新策略.分析和仿真结果显示,该机制可以实现距离矢量路由网络的快速故障恢复,并能提高网络的稳定性和可用性.The distance vector routing protocol can not deal with network failures effectively,causing significant forwarding discontinuity after a failure. The drawback with this protocol is that it needs to trade off routing stability and forwarding continuity. To improve failure resiliency without jeopardizing routing stability,a fast network self-healing mechanism is proposed for distance vector routing protocol. The new mechanism includes a backup multi-next hop for fast local rerouting strategy and a network stability-based triggered routing update mechanism. Analysis and simulation show that it can deal with the simultaneous failures of multiple arbitrary links effectively,and can efficiently improve stability and availability of networks.

关 键 词：距离矢量 快速故障恢复 多下一跳 本地重路由 触发路由更新 

分 类 号：TN929.53[电子电信—通信与信息系统]