一种自组织的P2P代理协议和搜索算法

针对当前互联网中大量使用的防火墙、代理技术和地址转换协议等给P2P (Peer to Peer)网络造成的通信障碍问题,提出了一种新型的P2P网络的代理协议(S4P),同时提出了对代理服务的搜索算法。该协议采用自组织的方式,使组成P2P网络的节点能够动态穿越双方所受到的通信障碍,解决网络中存在的对P2P连接的限制问题,增强了P2P网络的连接能力和资源访问与共享能力。仿真结果表明,S4P不仅可以完成节点间数据交换的要求,而且具有较好的性能。

A P2P Proxy Protocol Based on Self-organizing and Searching Algorithm

The technologies of firewall, proxy and network address translation are used widely in the internet due to the problems of security, network architectures and differences of network access methods. These technologies restrict the communication between the peers of P2P (Peer-to-Peer) network. A novel P2P proxy protocol based on self-organizing (S4P) and a searching algorithm for proxy service are presented. In S4P, each peer of P2P network can provide signaling and data forwarding abilities, so the peers can go through the communication hindrance of each side and break the limitation of the network by using the protocol. In addition, the proxy protocol extends the connecting ability of the P2P network. The results of the simulation indicate that S4P not only can accomplish the data exchange task but also has better performance.