Network interaction It is the basis of business support, and ensuring the stability and reliability of the network is the necessary content of operation and maintenance management. Network operation and maintenance managers need to pay attention to key parameters such as network communication and network performance, and can find abnormal events and analyze and locate the root cause of problems through network interaction information. The related technologies of traffic traceback may include: full traffic collection, traffic analysis, protocol analysis, behavior analysis, trend analysis, intelligent learning, establishing intelligent baseline, etc. The forms of traffic traceback feedback may involve: network interaction process display, data visualization display, alarm, log, auxiliary decision-making basis, etc. Through the above means, we can provide network and security operation and maintenance management capabilities to achieve the goal of stable and reliable network. When the network is under security threats, we can rely on technical means and measures to realize investigation, traceability and forensics.