| With the rapid popularization of Internet in our country,Attacks for the Internet system in our country is showing the fast growth trend. Computer network security means defending network attacks in essence and ensuring system security.However,anti-attacks mean attack data analysis basically and defense according to attack patterns and types.Thus,the research of computer network security means the study of the data attack.Data analys system is aiming to analyzed attack.Research attack modes based on data stream,which can formulate defense strategy quickly and make network safe.The main research work in the paper is as follows:Firstly, the research states the basic technology of Internet----TCP/IP protocol stack systematically and further introduces the hierarchy structure of the network formation.Secondly,the research present the detail of Data Analysis.,including the network topology structure of the system, the design of function module and the design of hash algorithm.Finally, the research is based on the basic theory and system design described above; we make anexperiment by Test Center tester and ZTE ZXR10 Equipment and then make a conclusion to the research. |