关键词: 局域网流量, 相空间重构, 关联维数, 关联性

Abstract: Due to the nonlinear properties in the network traffic，the correlation dimension is introduced to study the chaotic characteristic of network traffic.At first，the phase space of LAN traffic is reconstructed by using C-C arithmetic and the optimal time delay is proposed.Then，the relationships between correlation dimension and the network traffic are analyzed in detail.Further，the effect of the phase space parameter on the correlation dimension by phase space parameter is studied.The result shows that correlation dimension can describe the complexity of network traffic，if the time delay is chosen at a certain range.The correlation dimension and saturated embedding dimension increase along with the using of network，but on the contrary，the relative correlation dimension will become less as the average traffic is increased.The result can be considered as a fundamental route for studying the correlations of the network traffic factors.

Key words: LAN traffic, phase space reconstruction, correlation dimension, correlation