中文摘要：

多域光网络的生存性作为衡量网络性能优劣的关键指标，与实际网络应用的关系最为密切，是当前迫切需要解决的关键问题；聚焦高速化、多业务化驱动的多域光网络环境下的生存性技术。基于光网络的多业务、分布式控制的特性，分析了多域光网络生存性机制的研究现状及面临的挑战；给出了一种针对多域光网络生存性问题的分类方法；结合多域光网络对生存性的需求，对相关关键技术进行了归类和研究，并指明了进一步研究的方向和重点。

英文摘要：

The survivability of multi-domain optical networks is the key issue for assessing the optical networks performance, which has a close relationship with real deployment. It becomes the most stringent problem, which must be resolved as soon as possible. Focused all the attention on survivability schemes under the high speed, multi-service-driven multi-domain optical networks environment, and based on the traits which are multi-service and distributed control for optical network, we analyze the problems and challenges of survivability in multi-domain optical networks. The classification of survivability problems is researched in multi-domain optical networks. According to the requirement of resilience for multi-domain optical networks, associated key techniques are classified and some core techniques are discussed. Moreover, the direction for future work is indicated