Peer-to-Peer Content Delivery System with Bounded Traffic between Autonomous Systems

In this paper, we propose a hybrid Peer-to-Peer (P2P) architecture for Content Delivery Networks (CDNs). The basic idea of the proposed method is to prepare a P2P overlay for each Autonomous System (AS) and to map nodes to the P2P overlays by referring to the information maintained by the DNS server deployed by the system. The performance of the proposed scheme is evaluated by simulation. The result of simulations indicates that although the download performance of the proposed scheme is lower than conventional hybrid schemes by about 40%, it reduces the traffic between different ASs by 80%.