Abstract: “The P2P network is widely used in the Internet world. Many people share resources through the P2P network. However, domestic network connections are not stable and we need to consider their own network environment from the design. This paper presents a survey of measuring flow level information of a group. We can utilize the analysis of the information to design a customized P2P overlay network efficiently in our country in the future.”

Keywords: P2P, network environemnt, Overlay Network