P2P网络资源负载模型研究

Study of Resource's Load Model of P2P Network

P2P负载占据大量的Internet带宽,对骨干网络造成很大威胁.为了掌握P2P负载量的生产机制,管理P2P流量,通过分析P2P协议,建立P2P网络排队模型和P2P资源负载模型;通过仿真实验,分析相关因素对资源负载量的影响.发现:节点平均度和搜索协议TTL值,特别是TTL值,对具体资源的负载量影响最大;资源负载量随节点规模、资源初始数量、资源总量而增长,但当这些因素数量达到一定规模时,其数量的变化对资源负载的影响明显变小.

Peer-to-Peer （P2P） occupy lots of Internet bandwidth and cause a serious threat to backbone network.In order to understand the production mechanism of P2P loading and manage P2P traffic,by analyzing P2P protocol,construct a queuing model of P2P network and a resource＇s load model of P2P network,by simulation experiment,analyze the effects produced by related factors to P2P loading.Main conclusion including,average degree of node and TTL value of searching protocol,especial TTL value,cause great effects to the loading of concrete resource.Loading of objected resource increases with node quantity,initial number of objected resource and total quantity of all resource,however,when the number of above three factors reach to some critical threshold,it＇s effect become weak to loading of resource,obviously.