On the implementation of path-based dynamic pricing in edge-directed routing

Future Internet proposals have employed edge-directed routing to realize the benefits of path choice by the sources (e.g., end users). However, economic issues hamper the adoption by ISPs: 1) ISPs' costs increase when sources choose paths that are not economically optimal for ISPs, and 2) ISPs have to overprovision their links aggressively since traffic engineering is shifted to the users and congestion is more likely to occur. We implement a path-based dynamic pricing scheme that addresses these challenges. ISPs can dynamically adjust the prices of paths in order to compensate for potential losses incurred by users' choices and to incentivize users to switch paths in case of congestion. We describe our implementation in the context of future Internet architectures and demonstrate a mutually beneficial situation for ISPs and users.