中文摘要：

生存技术作为光传送网体系演进中最为重要的组成部件,受到学术界和工业界广泛而持久的关注.论文回顾和总结光传送网生存技术的重要研究成果及若干最新进展,内容包括：光网络的连接恢复技术、可生存光网络的资源优化与服务质量、两层网络的连接恢复技术以及透明光网络的故障定位技术.

英文摘要：

Survivability is widely regarded as one of the most critical components during the architecture migration of optical transport networks.This paper reviews the research achievements and the state-of-the-art progress in the field of optical network survivability,which includes connection recovery in optical networks,resource optimization and service quality in survivable optical networks,connection recovery in two-layer networks,and failure localization in transparent optical networks.