Towards a common architecture to interconnect heterogeneous overlay networks

ICPADS Workshop sessionInternational audienceThis paper presents a novel overlay architecture to allow the design and development of distributed applications based on multiple interconnected overlay networks. Message routing between overlays is achieved via co-located nodes, i.e. nodes that are part of multiple overlay networks at the same time. Co-located nodes, playing the role of distributed gateways, allow a message to reach a wider set of peers while overlay maintenance remains localized to individual overlays of smaller size. To increase robustness, gateway nodes route messages in an unstructured fashion, and can discover each other by analyzing the overlay traffic. The approach is able to work in both "collaborative" scenarios, where overlay protocol messages can be modified to include additional inter-routing information, or non-collaborative ones. This allows for the interaction with existing overlay protocols already deployed

An Extension and Cooperation Mechanism for Heterogeneous Overlay Networks

Part 1: Future Heterogeneous NetworkInternational audienceIn real-world peer-to-peer applications, the scalability of data lookup is heavily affected by network artifacts. A common solution to improve scalability, robustness and security is to increase the local properties of nodes, by clustering them together. This paper presents a framework which allows for the development of distributed applications on top of interconnected overlay network. Here, message routing between overlays is accomplished by using co-located nodes, i.e. nodes belonging to more than one overlay network at the same time. These co-located nodes serve as distributed gateways, enabling the routing of requests across overlays, while keeping overlay maintenance operations local. The protocol has been evaluated via simulations and client deployment, showing that the ability, of reaching the totality of the overlays in a federated configuration can be preserved even with the simplest routing, proving the feasibility of federated overlay configurations