Research on security architecture design of smart campus platform based on SDN and active defense technology

While big data technology accelerates the development of campus intelligence and informatization, it also makes traditional campus security defense methods difficult to meet the needs. Massive data and the complexity of operation and maintenance management also affect the informatization construction of smart campus, bringing many security risks. Research the distributed management of data based on SDN, and use the new address hopping technology to achieve the active defense of the target, and build the architecture of the security platform considering the data type. Test and verify the architecture design proposed in the study. The results show that the security platform based on SDN and active defense technology performs well in network delay improvement and throughput, and its maximum CPU load difference with the fixed port reaches 9%. The anti attack time response changes are relatively stable, the accuracy of data transmission is more than 97%, and the root mean square error of data processing is small, It improves the protection level while ensuring data security.