Abstract: The paper proposed a dissymmetrical and pure P2P topology based on K-arytree architecture named DSKTree with the view of ”node symmetrical characteristic”. It can solve the unstable and linearly increasing scale problem in resource sharing application using pure P2P topology. It also designed resource locating algorithm in DSKTree topology. The performance analyses showed that it can optimize the cost of locating and lower the influence to performance while the scale of the system increases.

Key words: dissymmetrical, resource locating, peertopeer, dissymmetrical, resource locating