互联网流量继续呈指数增长趋势,云计算、视频、数据中心互联等新兴业务推动下一代光网络向超高速、高谱效、动态灵活和多业务适配等方向发展。基于灵活频谱的超高速光网络架构将光网络提供业务的灵活性从传统的时域拓展到频域,支持灵活带宽分配、多业务速率适配、绿色节能以及可扩展性,并已成为光分组交换技术成熟以前非常具有应用前景的全光网技术之一。本文分析了基于灵活频谱技术的新型超高速光网络架构,并对关键技术和应用趋势进行了探讨。
The rapid traffic growth and the emerging new services such as cloud computing, video and data center intercon- nection are driving for the next generation optical network towards the direction of ultra-high speed, high spectrum efficiency, dynamic and elastic, multi-service adaptation. This paper analyzes the spectrum elastic optical network architecture, key tech- nologies and the applicationtrends.