Coordinate-based routing for overlay networks

Overlay networks are widely used as a way to introduce novel Internet services and to improve the reliability and performance of today's Internet. Traditionally, overlay networks perform routing by mimicking the underlying IP routing protocols, which does not scale well with the system size. In this paper, we propose a fundamentally new approach to overlay routing that is based on network coordinates. Our evaluation shows that this approach is scalable to a large number of overlay nodes with a message complexity of O(N) while providing routing decisions that are close to optimal in terms of error resilience and path delay.