分布式网络故障检测及恢复技术研究  

Research on distributed network fault detection and recovery technique

作　　者：来晓[1] 冯冬芹[1] 褚健[1] 

机构地区：[1]浙江大学智能系统与控制研究所,杭州310027

出　　处：《计算机工程与应用》2010年第24期73-76,共4页Computer Engineering and Applications

基　　金：国家创新研究群体科学基金(NCRGSFC No.60721062);国家高技术研究发展计划(863)(No.2006AA040302;No.2007AA041201)~~

摘　　要：IEC62439系列协议专为高可用性工业自动化网络所设计,它们各具特点,着重分析IEC62439-6DRP(分布式冗余协议)的通信机理以及故障检测与恢复机制。根据DRP环形网络循环周期、网络交换设备数量、报文处理时间等一系列参数,提出了一种关于故障检测至恢复所需时间的算法。经测试平台的验证,DRP网络能迅速地检测出节点和链路的故障,并能在短时间内恢复网络的通信功能,满足现代工业网络对网络高可用性的要求。IEC 62439 series are designed for high availability automation network specially,each protocol has its own characteristic.This paper mainly analyzes the communication mechanism,fault detection and recovery methods of IEC62439-6 DRP （Distributed Redundancy Protocol）.It provides one kind of algorithm to calculate the time required for fault recovery from detection based on several parameters,including DRP circular network period,numbers of switch devices,datagram processing time,etc.It can validate the performance of the network through the test platform,DRP network can detect node and link failure immediately,and can restore the network communication function quickly which meets the high-availability requirements of today＇s industrial network.

关 键 词：分布式 分布式冗余协议(DRP) 故障检测 故障恢复 高可用性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]