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软件定义网络(SDN)通过分离转发层与控制层提高转发效率和灵活性,但受限于IP路由无法从根本上解决内容并发分发等问题.内容中心网络(CCN)提出的内容路由从原理上提供了解决思路,但实际中基于SDN的CCN实现方案仍需依赖IP路由.协议无感知转发(POF)协议是对OpenFlow协议的扩展,支持任意格式的转发数据包.在POF环境下,提出一种内容中心网络架构及实现方案POF-CCN,采用比原始CCN路由效率要高的不依赖于IP的导向路由,实现了自定义网络层数据格式协议,在真实网络环境中进行了部署与实验,并应用到实际系统.
Software Defined Networking (SDN) improves forwarding efficiency and flexibility by separating the forwarding and control layers, but is limited by the fact that IP routing can not fundamentally solve the problem of concurrent content distribution. Content routing proposed by Content Center Network (CCN) However, in fact, the SDN-based CCN implementation still needs to rely on IP routing.A protocol-free perceptual forwarding (POF) protocol is an extension to the OpenFlow protocol and supports the forwarding of data packets in any format.In the context of POF, The content center network architecture and implementation scheme POF-CCN adopts the route independent of IP which is more efficient than the original CCN routing, realizes the data format protocol of the network layer in the real world, and realizes the deployment and experiment in the real network environment, And applied to the actual system.