一种改进的多域光网络保护机制

生存性是保证业务服务质量的关键,多域光网络生存性问题中,由于存在多域间拓扑和路由信息不可见等约束,导致生存性实现较为困难.提出了将多域光网络进行逻辑聚合的思路,在此基础上分别针对域内和域间提出了非等值负载保护和M∶1保护机制.域内的非等值负载保护机制可以根据节点数以及业务量动态地分配保护路径,从而有效地提高资源利用率.

An improved protection scheme for multi-domain optical networks

Survivability is the key technology to ensure quality of services,which is a difficult problem in multidomain optical network environment where the inter-domain topology and routing information are invisible. The paper proposes a novel idea of aggregating the multi-domain optical networks into logical topology.On this basis a non-equivalent intra-domain load balanced protection scheme and inter-domain M: 1 protection strategy is presented.The non-equivalent load balanced intra-domain protection scheme can a...