网络流量的迅猛增长,尤其是云计算、数据中心等流量的指数式增长对骨干网的节点处理能力带来巨大挑战.全光交换成为未来可能的解决方案.文论述了目前主要的全光交换技术,并针对各个技术的优缺点进行了比较和评价.
With the rapid growth of network traffic, es-pecially the exponential growth of cloud computing, datacenter traffic, the backbone networks node pro-cessing abilities are facing a great challenge. All opti-cal switching become the possible solutions. The main optical switching technologies are expounded in this paper, and the solutions are discussed with the focus on the comparison of their advantages and shortcom-ings.