针对弹性光网（EON）中光通道带宽和上层用户业务带宽间存在的严重不匹配性，并考虑到光网络生存性的重要性，本项目重点研究IP over EON多层网络生存性流量疏导问题。本项目属于光网络领域前沿探索性应用基础研究，主要研究内容包括：（1）面向连接保护（PAC）和光通道保护（PAL）模式下的光电层流量疏导，（2）光层信号再生和电层流量疏导的优化融合，（3）多路径业务生存性流量疏导，（4）基于带宽压缩恢复（BSR）技术的弱生存性流量疏导，（5）光电层业务频谱重整理。本项目将在理论上对IP over EON生存性流量疏导做深入的研究，提出适合于IP over EON最优的生存性流量疏导技术和先进的优化设计方法。鉴于目前对IP over EON生存性流量疏导的研究尚处于起步（基本为空白）阶段，本项目将抓住这个有利时机，争取做出国际一流的研究成果，为我国下一代网络技术的发展与建设提供新思路新方法。

Considering the severe mismatch between the bandwidths of user applications and optical channels in an elastic optical network (EON), and meanwhile considering the importance of network survivability for a broadband optical network, in this project we look into multi-layer survivable traffic grooming for IP over EON. This project belongs to the category of frontier exploration for applied fundamental research. The major research issues include: (1) optical/electronic traffic grooming under the protection at connection (PAC) and protection at lightpath (PAL) modes, (2) convergence of signal regeneration in the optical layer and traffic grooming in the electronic layer, (3) survivable traffic grooming for multi-path connections, (4) weak survivable traffic grooming based on bandwidth squeezed restoration (BSR), and (5) joint connection reconfiguration and spectrum defragmentation in the electronic and optical layers. We will have an in-depth exploration on the survivable traffic grooming technique and propose various efficient approaches for IP over EON. Viewing the fact that there is very little research on survivable traffic grooming for IP over EON in the literature, we hope to take this opportunity to generate world-class research output, which will provide new ideas and approaches for building efficient next-generation broadband networks of our country.