Peer-to-peer caching (P2P caching) is a computer network traffic management technology used by WebLi Internet Network to accelerate content delivered over peer-to-peer (P2P) networks while reducing related bandwidth costs.
P2P caching is similar in principle to the content caching long used by ISPs to accelerate Web (HTTP) content. P2P caching temporarily stores popular content that is flowing into an ISP’s network. If the content requested by a subscriber is available from a cache, the cache satisfies the request from its temporary storage, eliminating data transfer through expensive transit links and reducing network congestion. This approach could make ISPs violate laws as P2P systems share files that infringe copyrights in significant portions.
P2P content responds well to caching because it has high reuse patterns reflecting a Zipf's-like distribution. P2P communities have different Zipf's parameters which determine what fraction of files is requested multiple times. For example, one P2P community may request 75% of content multiple times while another may request only 10%.
Some P2P caching devices can also accelerate HTTP video streaming traffic from YouTube, Facebook, RapidShare, MegaUpload, Google, AOL Video, MySpace and other web video-sharing sites.
WebLi P2P is a torrent caching engine that works like web caching engine like squid. When first time any given torrent is downloaded by any user, WebLi Cache keeps a copy in the server. Next time any user requests for the same torrent, WebLi P2P server connects to the user and delivers the cached content. Cached content is delivered at wire-speed giving exceptional experience to the user. This speed about 70-98% of High Internet peering traffic to WebLi Broadband Services.