计算机技术与发展2015，Vol.25Issue(11)：87-92,6.DOI:10.3969/j.issn.1673-629X.2015.11.018
一种SDN网络的故障自动恢复方案
An Automatic Failure Recovery Scheme in SDN
摘要
Abstract
Detecting and recovering failure in time is a very important criteria for evaluating the practical value of network. For shortening the time of service disruption and enforcing the reliability of network,it is necessary to study the failure detection and recovery techniques in the SDN network. By analyzing the features of the existing two SDN failure recovery mechanisms and their limitations,a synthesized failure recovery approach combined with proactive recovery and reactive recovery schemes,including that considers the quality of service of packet flow,is proposed. A system based on open source OpenDaylight controller is designed and implemented,which uses asyn-chronous alert to detect network failures,and diagnoses failures depending on the number of failures and the service properties of flows af-fected by the failures. Three recovery modes,includes proactive,deliberative,reactive modes,are proposed to recovery automatically ac-cording to the diagnostic results. Test results show that the scheme can automatically choose proper recovery mode based on failure type, and the recovery effect is good.关键词
软件定义联网/OpenFlow/故障检测/故障恢复Key words
SDN/OpenFlow/failure detection/failure recovery分类
信息技术与安全科学引用本文复制引用
洪硕果,沈苏彬..一种SDN网络的故障自动恢复方案[J].计算机技术与发展,2015,25(11):87-92,6.基金项目
江苏省未来网络前瞻性研究资助项目(BY2013095-1-08) （BY2013095-1-08）
