SDN METHOD AND APPARATUS FOR DETERMINING DATA TRANSFER PATH BY USING DYNAMIC NETWORK TRAFFIC ANALYSIS BASED ON SOFTWARE DEFINED NETWORKING

摘要

Provided are a method and a device for determining a data transmission path through SDN-based dynamic network traffic analysis. The method for determining a data transmission path through SDN-based dynamic network traffic analysis, which is a software-defined networking (SDN)-based internal network control method, comprises: a step of generating a plurality of paths in the internal network; a step of dynamically calculating traffic of each of the plurality of paths from at least one SDN switch included in the internal network by using an OpenFlow protocol; a step of receiving a data request from an external IP network; a step of retrieving a location where the requested data is stored in the internal network; a step of loading at least one path associated with the location storing the requested data among the plurality of paths; a step of selecting one or more candidate paths from the loaded one or more paths by using the calculated traffic; a step of determining any one of the one or more candidate paths as a data transmission path; and a step of determining a gateway, to which the determined data transmission path is connected to the external IP network, as an IP gateway for communication with the external IP network. Therefore, the present invention can determine the optimal data transmission path.