Discussion on Application of Virtual Firewall Technology to Network Security in Railway Communication Network Management.

Against the background of the development of network security technologies such as railway communication data network and transmission network, and in accordance with the strategy of "integration, centralization and protection" for security protection in railway communication networks, this paper puts forward the concept of using the virtual firewall technology to share one network security protection system at the network security boundary of various communication network management systems. The proposed concept aims to achieve the purposes of service isolation, management and control isolation, and equipment resource sharing among various systems, so as to meet the network security needs of various network management systems for communication systems. [ABSTRACT FROM AUTHOR]