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介绍当下核心IP专用承载网运营建设中的一些现状,包括架构和面临的困难,然后引入SDN(软件定义网络)的架构思想并介绍这一架构中的OpenFlow(开放流)技术,着重描述SDN集中控制器(Controller)应用在核心IP专用承载网上这一主要内容,基于这一思想架构的网络,与现网相比较,能够带给现网维护的便利、设备性能的提高和业务数据更新的可操作和便捷等优势。
This paper introduces some current situations, including the architecture and difficulties in the current operation of core IP bearer network. Then it introduces the architecture of SDN (Software Defined Network) and introduces the OpenFlow technology in this architecture. It focuses on describing SDN convergence The main content that the Controller is applied to the core IP dedicated bearer network is that the network based on this thought architecture can bring the convenience of live network maintenance, equipment performance improvement and service data update compared with the existing network Operation and convenience and other advantages.