Characterizing Churn in Gnutella Network in a New Aspect

In this paper, we just study churn in Gnutella network, and there are two points that we pay more attention to. Firstly we visualize that the connection changes are much bigger than the degree changes in the Gnutella network; secondly we calculate how many new peers a particular peer can choose as neighbors during a period of time, and the conclusion is that during an hour there are about 26 new peers the very peer chooses as its neighbors. This is very useful to guide people to re-search the resource first appeared or the scarce resource that has not hit the right one for the first time search. And we claim that the perfect interval between two searches is about 70 minutes.