The Research On Of A P2P Network Model With Multi-Layer Architecture Based On Region

P2P (Peer-to-Peer) networking is a new network model that has been sweeping through the computing industry over the past year or so. Being supported by distributed computing technology, P2P may be one of the most important technology that influences the Internet in the future. Compared with the traditional Client/Server model, P2P has many advantages, such as the higher utilization of network resources, the elimination of bottleneck caused by central servers. The servent has the client and server function, can carry on data communication directly between each node, share the resource of the computer and service, does not need to rely on the centralized type server to support, elimination of island of information and resource. So P2P has great potential value on commerce and technology.At first, this paper has been discussed to the application, typical problem and relevant research projects of P2P computing technology, has analysed the fundamental property of P2P network system structure, has classified and summarized the assessment and test standard of P2P topological structure.Combine tradition getting centralized easy to manage with distributed network having good regional autonomy, load balancing, and robustness, based on the Small World mode, and in the light of the users' requirement and a shared organization layer and region of logic manage-unit. Puts forward an application layer multicast protocol(RLP2P) and constructional rule of the multi-layer architecture peer to peer network model based on region, provides a classifying policy and a mathematic mode of layer and region, and which proves the construction rule of the model. At the same time, it makes an explicit definition topology of the system structure. This paper has analysed the comprehensive performance of the model in detail with quality of the data delivery path, robustness of the overlay and control overhead are three important metric that about the "goodness" defined to evaluate the quality of the application layer multicast protocol, as well as quantifies of metrics and gives compute the formula.Combine its advantages both the Gossip distributed forward search and spanning tree algorithm, this paper, on the characteristics of this model, puts forward algorithm of search pack Grade-diffusion policies of Multi-layer Gossip based on Gossip and routing algorithm of beehive based on regular hexagon in Region, classifies the message of the network into diffusions based on Region and in Region, achieves message blocking's high speed diffusion by controlling message's diffusion-count K and message's sendingtimes i, and makes the workload of locating service and all the network host-count of range query bring down to that of Region, so as to effectively control the request Flood produced by network.On the basis of RLP2P model, structure the systematic prototype of information sharing of making a reservation on the basis of characteristic information. Organize the model, news to transmit to the design object, structure of the system, data resource ofthe prototype of the system, information orient the tactics to describe separately.Regard application layer multicast as the goal, with quality of the data delivery path, robustness of the overlay and control overhead are three important metric that about the "goodness" defined to evaluate the quality of the application layer multicast protocol. This paper, simulation and analysis on P2P network model of RLP2P for scalable application layer multicast protocol with multi-layer architecture based on region. We present simulations of both RLP2P and Narada application-layer multicast protocol. At the same time, the idea is put forward about the tradeoffs between the stress and stretch metric for randomly distributed network or region size on realistic topologies.