从软件定义光网络(SDON)的路径建立和资源分配问题着手,首先描述了SDON控制平面面向业务的特点并对资源抽象过程进行了描述,接着研究了OpenFlow协议向光域扩展的策略,最后分析了SDON中路径建立和资源分配过程及对应的关键技术,着重对不同技术域内的路径建立和资源分配策略进行了研究。
This paper commences on Software defined optical networks (SDON). Firstly, the service oriented features and physical layer abstraction of control plane are described in this paper, and then, it researchs on OpenFlow protocol extending to optical network, lastly, the some key problems of paths establishing and re- sources allocation are analyzed, and the paths establishing on different technology fields and resources alloca- tion strategy is studied emphatically.