YHSSAS:Large-scale Network Oriented Security Situational Awareness System
YHSSAS:面向大规模网络的安全态势感知系统

NSSAS(Network Security Situation Awareness System) can perceive the overall network security situation.It plays an important role in improving the emergency response capacity and active defense capability of the networks.Existing NSSAS is limited in processing capacity,which is difficult to apply to the national backbone network and other larg-scale networks. This paper introduced a NSSAS designed for larg}scale networks named YHSSAS. The situational awareness model was proposed first, and then several key technologies, including data integration, correlation analysis,indicators quantification and event predication,were detailed.