Implementation and Evaluation of Multi-Swarm BitTorrent System Using Support Node

Recently, P2P system is expected to solve server load concentration problem in content delivery based on client-server system. In P2P system, every node adaptively operates as both of a client and a server, and autonomously delivers content data with each other. The authors aim at improving the delivery efficiency and its fairness between peers in BitTorrent by introducing Support Nodes which are prepared by service provider and support new peers or snubbed peers in specific swarms. So far, we proposed adaptive allocation method of support nodes in multiswarm environment, and performed evaluation by the simulation. In this paper, we implement the proposed method on the real machine, and demonstrate the effectiveness by experiment.