随着光网络的高速发展，以及自动交换光网络(Automatic Switched Optical Network，ASON)的出现，光网络的理论与应用研究越来越重要。控制平面的引入，网络的扩展性得到了更高的提升。网络的生存性是支撑网络能正常工作的切实保障，生存性技术是保证网络性能的重要技术。当网络出现故障后，生存性技术可以用于实现受损业务的保护恢复，进而使得网络能正常的工作。 文中介绍了ASON生存性国内外研究成果，研究了ASON网络的三个平面、连接方式以及相关接口，对基本的信令体系、GMPLS协议和路由方式进行了分析比较。提出了研究ASON生存性的评价体系。 论文研究了ASON单域内、域间和多层生存性策略，阐述了对几种常见的保护和恢复方法：1+1保护、1:1保护、共享Mesh保护和动态重路由恢复。通过OPNET仿真软件对这几种策略进行了仿真对比，给出了各种保护方法的优缺点。在域间1+1保护策略和Y型1+1保护策略的基础上，提出了一种新的保护策略——Y型1+1与交叉备份联合域间保护策略，在理论上进行分析并通过仿真实现。仿真结果表明：该保护策略在业务阻塞率和冗余度方面都有较好的改进。分析了独立多层生存性策略所存在的协调性问题，讨论了并行保护、顺序保护以及联合保护策略。在处理层间保护动作协调问题上，分析了联合保护策略，在层间设置了一个保持时间定时器，以防止出现多个保护动作同时进行造成的资源浪费。

With the rapid development of optical network and the advent of ASON, The research on the theory and application of optical network is more and more important. The introduction of control plane, the scalability of the network has got higher promotion. And the survivability of network is the guarantee to support the network working normally. Survivability is an important technology to ensure the network performance. when there is something wrong with the network, Survivability is used to protect and recover the damaged business, which makes the network work normally. This paper introduces research findings of ASON survivability at home and abroad, studies three planes of ASON network ,connections and related interfaces, the basic signaling system, GMPLS protocols and routing are analyzed and compared. Then provides ASON survivability assessment system. This paper has studied ASON single domain, inter-domain and multi-layer survivability strategies ,explained the protection and restoration of several common methods: 1 +1 protection, 1:1 protection, shared mesh protection and dynamic re-routing recovery. In this thesis, compared these types of strategy simulation via OPNET simulation software, and given the advantages and disadvantages of various protection methods. Based on domains 1 +1 protection strategy and Y-type 1 +1 protection strategy ,put forward a new protection strategy —— joint inter-domain protection strategy between Y type 1 +1 and cross-backups, we have analyzed and simulated this protection strategy in theory. The simulation results show that: the protection strategy has a good improvement in the business blocking rate and redundancy. Finally, the article has analyzed Independent multilayer survivability strategy coordination problem, discussed the parallel protection and order protection, For processing layer to protect the motor coordination, the paper has given joint protection strategies, set in the interlayer with a hold time timer to prevent the resulting waste of resources which multiple protections has been affected at the same time.