Development of Network Security Based on the Neural Network PSD Algorithm

Table 1

Network security situation assessment indicator system.

First-level indicators	Secondary indicators
Availability	Traffic change rate, average survival time of major devices, mean time between failures of major devices, and total subnet traffic
Vulnerability	Total number of security devices, total number of open ports on major devices, number and extent of network vulnerabilities, device system type, and memory capacity
Threatening	Type and number of alarms, type and severity of attacks, historical frequency of attack events, and distribution and size of threat data packets
Disaster tolerance	Network topology, network bandwidth, number of concurrent threads of subnet servers, operating system types of subnet devices, and types of services provided