Abstract:

In this paper,the concept of flow is introduced and the principle of traffic collection in the Linux system based on Libpcap is studied.A scheme of flow-based campus local area network (LAN) traffic statistics is proposed on the basis of the analysis of the methods of campus LAN traffic statistics,and the overall design of the scheme and the implementation of the algorithm are given.

Key words: flow;Linux;Libpcap;campus network;traffic statistics