摘要
为解决WDM光网络中快速准确定位故障的难题,提出一种面向多径业务传输的快速故障定位机制,即建立多径业务传输模型来寻找多条链路分离光通路,在此基础上,各网络节点分布式独立计算故障链路向量,以快速限制定位区域。通过理论分析和仿真表明,所提机制对业务分布依赖性更低,能够迅速实现故障完全定位,并能提升故障定位速度。
In order to solve the problem of expeditious and accurate fault localization,a fast fault location mechanism based on multipath traffic transmission was proposed.Through establishing the multipath traffic transmission model,a number of link disjoint lightpaths are founded.Meanwhile,each node computes independently the affected link vector in a distributed manner to restrict a small failure localization area rapidly.Theoretical analysis and simulation results de-monstrate that the proposed mechanism can faster achieve the completely fault location and greatly increase the location speed.
出处
《计算机科学》
CSCD
北大核心
2012年第12期87-90,共4页
Computer Science
基金
国家自然科学基金项目(60972096
61001105)
重庆市自然科学基金重点项目(2011BA2041)
重庆市教委科学技术研究项目(KJ110531)资助
关键词
全光网络
故障定位
多径传输
All-optical networks
Fault location
Multipath transmission
