This paper first analyzes the advantages and disadvantages of previous peer-to-peer network models and on this basis proposes an improved P2P network model
e.g.discarding messages that have been seen
returning responding messages along the original routes and setting the broadcast radius.Then
it gives a fairly detailed introduction to its functional modules for node management
resource search and download management.Finally
on these bases
it designs and develops a P2P-based Network Management System(NMS).