Examining the status of CPU working load, processing load and controller bandwidth under the influence of packet-in buffer status located in Openflow switches in SDN-based IoT framework

摘要

Currently, the Internet of Thing has become an integral part of the world's Internet infrastructure. One of the important matters in this field is the security of the network. Some networks like Software-defined Networking are proposed to improve it. In this paper, cyber-attacks have been simulated and various parameters such as the average rate of receiving traffic, the average response time and network delay have been analyzed. In the following, a new plan for switch buffers and their effect on the state of CPU performance, the controller bandwidth and the amount of packet loss have been discussed. The new buffer structure is proposed using a hash table, which uses a DRAM combination structure. To implement the proposed technique, AS5710-54X-EC switch and floodlight controller were used, and also Eclipse Neon 3.1 was used for writing modules. The results imply that this method had a great impact on detecting attacks in SDN-based IoT frameworks.