业务驱动的跨层生存性策略  

Service-Oriented Cross-Layer Survivability Strategy

作　　者：王力[1] 曲桦[1] 赵季红[2] 

机构地区：[1]西安交通大学电信学院,西安710049 [2]西安邮电学院通信工程系,西安710061

出　　处：《电子科技大学学报》2012年第2期232-237,共6页Journal of University of Electronic Science and Technology of China

基　　金：国家无线重大专项(2010ZX03004-001;2011ZX03004-002);国家自然科学基金(61071126;60872058);国家863计划(2009AA01Z213)

摘　　要：为了在多层网络中提供区分业务的差异化服务,避免发生故障后上下层生存性策略冲突,应用段保护机制,基于GMPLS控制平面,提出业务驱动的跨层生存性策略。该策略应用基于传输质量(QoT)的再生节点配置机制在网络中提供区分业务的差异化服务、基于再生节点的段保护机制保证网络生存性以及基于GMPLS控制平面的跨层路由映射机制,避免资源重复分配和生存性策略冲突。仿真结果表明,该策略不仅具有区分业务提供差异化服务的能力,而且能够提高网络生存性,优化网络资源。A serviced-oriented cross-layer survivability strategy is proposed based on GMPLS control plane（SCSG）.The strategy provides the differentiated services are implemented by using regeneration node configuration scheme based on quality of transmission（QoT）.The network survivability is guaranteed by using segment protection scheme based on regeneration node.The duplication of resource assignment and conflict of interlayer survivability strategy are avoided by using cross-layer route mapping based on GMPLS control plane.The results show that the proposed survivability strategy not only can provide differentiated services,but also can improve network survivability and resource utilization.

关 键 词：跨层路由映射 GMPLS控制平面 多层网络 网络生存性 业务驱动 

分 类 号：TN915[电子电信—通信与信息系统]