基于资源个性化需求感知的生存算法设计  

DESIGN OF SURVIVAL ALGORITHM BASED ON INDIVIDUALIZED DEMAND PERCEPTION OF RESOURCES

作　　者：林国勇[1] Lin Guoyong(Xiangsihu College,Guangxi University for Nationalities,Nanning 530008,Guangxi,China)

机构地区：[1]广西民族大学相思湖学院,广西南宁530008

出　　处：《计算机应用与软件》2020年第7期68-73,共6页Computer Applications and Software

基　　金：2018年度广西高校中青年教师基础能力提升项目(2018KY0818)。

摘　　要：通过梳理现有ASON通路对搜索算法的瓶颈,提出一种能区分不同SLA波长业务对通路对资源个性化需求进行感知,并提供差异化自愈的生存算法。本着共享风险链路组(SRLG)相对分离原则,通过分布式迭代计算搜索两个在源/宿节点对间未途经同一个SRLG,且满足SLA对带宽资源可靠性需求的通路。通过定义失效风险模型感知不同SLA的波长业务所需的差异化定制服务,计算出基于SRLG相对分离的通路对资源。根据通路对各自动态权值的实时排序完成通路对的筛选。经生存性指标评估表明,该算法对ASON生存性的贡献最大。By summarizing the bottleneck of the existing ASON path pairs search algorithm,this paper proposes a survival algorithm which can distinguish different SLA wavelength service to perceive the personalized demand of path pairs resources and provide the differentiated self-healing.Based on the principle of relative separation of shared risk link group(SRLG),it searched for two paths that did not access the same SRLG between source/host node pairs and met the reliability requirements of SLA for bandwidth resources by distributed iterative computation.The algorithm perceived the differentiated custom services needed by different SLA wavelength services by defining the failure risk model.And it calculated the path pair resources based on the relative separation of SRLG.The path pairs were screened according to the real-time sorting of dynamic weights.The survivability index evaluation shows that the algorithm contributes the most to the survivability of ASON.

关 键 词：智能光网络 通路对 共享风险链路组 参量 生存性 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术] TN929[电子电信—通信与信息系统]