A Traffic Cache for Structure Peer-to-Peer Networks

The rise in peer-to-peer (P2P) networking has been tremendous in last several years; a large amount of network bandwidth backbone is consumed by P2P traffic. Although many methods have been proposed to manage P2P traffic, these methods require a lot of knowledge about the workloads and are generally difficult to implement. In this paper, we propose a mechanism of traffic cache based on P2P networks and simply modify LRU algorithm to improve cache hit ratio. A series of simulation experiments on the OMNeT++ show that the mechanism can greatly increase the proportion of local area network traffic while P2P downloads are done and effectively reduce the cross-border traffic for having a good way to reduce backbone load.