Real-time routing updating method in software defined network
A software-defined network and update method technology, applied in the field of real-time routing update, can solve problems affecting network performance, etc., and achieve good user experience, broad application prospects, and improved network performance
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[0022] The present invention is a real-time routing update method in a software-defined network, wherein the software-defined network (SDN) is built by a switch supporting the openflow protocol under the SDN architecture, and the controller collects statistical information of all data flows in the network, and a part of them The data flow is rerouted, and the selected data flow must meet the following two conditions: 1. It can meet the time limit of the SDN switch for adding or modifying the flow table. 2. It can minimize the maximum load of the entire network. Such as figure 1 As shown, the routing process of this embodiment is as follows:
[0023] (1) Utilize the characteristic that the controller performs centralized control on the entire network, and use the controller to collect the information of all existing data flows in the network. For example statistics collection can be performed.
[0024] (2) Select a part of the data flow that meets the following two condition...
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