一种软件定义网络中带内模式下控制网络的配置升级机制

Updated Mechanism for in-Band Controlling Traffic of Software Defined Networking

为了实现带内模式下控制链路的快速升级,提出了基于目的节点对所需升级的配置进行划分的计算机制,通过对上行链路和下行链路的分析提出了将上下行链路基于统一的升级处理机制分别进行升级的方法.实验结果表明,提出的算法能在相对更短的时间内得到配置升级时各节点的优先级分布,并以更少的升级步骤完成升级,但是需要占用额外的流表空间.

In order to solve the problems which may be arised when the routing policy of control plane is updated in in-band mode,an update mechanism based on the destination oriented routing was proposed.The mechanism divides the update policy into subclasses based on the different destinations,and also separates the uplink routing from downlink routing based on the destination. A unified update algorithm was presented for the updating of both uplink and downlink of controlling traffic. Experiment shows that the proposed mechanism shows more efficient both in the computation time and in updating time,but some extra flow entries may be needed.