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P2P(点对点)技术是一种应用层的分发技术,在P2P技术中,分布在互联网各个位置的所有节点都可能成为内容提供者,因此P2P会造成大量的跨域流量,对目前的网络造成很大冲击。文章简要介绍P2P技术及其应用,详细分析三种应用层P2P流量优化方案:DDP(支持自治域发现与优化的P2P管理协议)、P4P(P2P流量优化技术架构)、P2P+。通过对三种方案的分析比较得出P2P+方案具有明显的技术优势。
Peer-to-peer (P2P) technology is an application-layer distribution technology. In P2P technology, all nodes distributed in various locations on the Internet may become content providers. Therefore, P2P will cause a large number of cross-domain traffic, causing great impact on the current network Big impact. In this paper, P2P technology and its application are briefly introduced. Three application layer P2P traffic optimization schemes are analyzed in detail: DDP (P2P management protocol supporting autonomous domain discovery and optimization), P4P (P2P traffic optimization technology architecture) and P2P +. Through the analysis and comparison of the three schemes, the P2P + scheme has obvious technical advantages.