Understanding of network operator-friendly P2P traffic control techniques in intra domain

Existing network operator-friendly P2P traffic control techniques like P4P argue that network operators can reduce inter-domain traffic while peer-to-peer (P2P) applications can improve their performance through the traffic localization. However, the existing work has not addressed how the traffic localization affects an intra-domain traffic control in detail. In fact, not considering the impact on intra-domain traffic may lead to a suboptimal performance, since intra and inter-domain traffic control usually have different goals and requirements. This paper elaborates performance investigation of intra-domain traffic control by the existing techniques. Through simulations, we reveal the performance-based technique (utilizing a dynamic networking status) shows attractive features compared to the distance-based technique (utilizing a locality-aware information) while the performance-based technique has potential problem that may block a fine-grained traffic control. Based on the observations, we provide one guideline to solve an identified limitation of the existing technique.