SDN-based network security protection system and method

Abstract

The invention provides an SDN-based network security protection system and method. The system comprises a sensing layer control center, a forwarding layer, a control layer and an application layer, wherein the sensing layer control center is in communication connection with the control layer, and is used for receiving initial data collected by a sensor arranged on the sensing layer, performing analysis processing on the initial data to screen out abnormal data in the initial data, and sending the abnormal data to the application layer through the forwarding layer; the forwarding layer sends the abnormal data sent by the sensing layer control center to the application layer, or sends the initial data to the control layer for processing; the control layer controls the sensing layer control center, the forwarding layer and the sensor arranged on the sensing layer; and the application layer receives the abnormal data sent by the sensing layer control center and pushes the abnormal data toa user to implement the interaction with the user. By adoption of the SDN-based network security protection system and method provided by the invention, the attack resistance of the system can be enhanced, and the abnormal problems can be quickly located to facilitate the restoration of the system.

Description

technical field [0001] The present invention relates to the technical field of network security, in particular, to a network security protection system and method based on a software-defined network (Software Defined Network, SDN). Background technique [0002] With the development of Internet of Things (Internet of Things) technology, the underground rail transit system has gradually introduced Internet of Things related technologies. Specifically, the subway system that introduces the Internet of Things technology is divided into three parts: the perception layer, the network layer, and the application layer. Among them, the bottom layer is the perception layer, such as sensors and RFID tags on the subway equipment, which are used to collect information about the control objects. The middle layer is the network layer, which is used to realize the transmission of network data; the top layer is the application layer, which is used to realize the human-computer interaction l...

AI Technical Summary

Problems solved by technology

[0003] However, compared with the Internet, the complexity of the Internet of Things leads to more security risks

Whether it is the underground rail transit facilities themselves or the computer management system that introduces the Internet of Things technology, there are many potential safety hazards.

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