Based On The Structural Resources Of The P2p Content Distribution Network, System Search And Routing Algorithm

P2P(Peer-to-Peer)is of multiple pecularities such as self-organization,load alancing,awailability,fault tolerance and anorymity,etc.Napsterl,Gnutellal and Freenet, which are typical of P2P systems,privides people with rich shared resources and platform of information communication.hence,the core of Internet application has been shifting from central server to client.CDN(Content Delivery Network,CDN)differentiates itself from traditional mirror image by proposing the new concept of approximating concent to users,converting content service from previous single central structure to distributive structure.According to the concept, it is possible to guide users requirements to appropriate content serve nods in terms of messages such as location users and load of servers.The advantages of CDN can be listed as follows:effectively balancing load,controlling net currency, improving net function relieving pressure of main network bindwidth aroused by high ratio of Streaming Media,and boosting quality of Streaming Media server.In this paper,a new network structure is adopted,which is composed of dynamic autonomy system,structurized.source server and proxy server,Dynamic layer is allowed in the autonnmy system.Each node is assigned its own task considering its ability,so as to ensure the load of each node is restricted to what it can hold.In the aspect of algorithm,the present author adopts routing algorithm,in terms of high degree of Dynamic to creat structured and scattering system routing algorithm;what's more,considering server,in terms of the principle of stable structure,much consideration is given to the problem of Qos.So the based graph theoretic proxy server algorithm is constructed,which algorithm will used to ant- algorithm measurement argument and Petri Net technique.In the present reseach there are some simulation experiments corresponsiding to the adopted algorithm...