Dynamic virtual overlay networks for large scale resource federation frameworks

Resource federations provide access to distributed resources committed by participating organizations. This concept is currently applied to provide large scale experimental facilities serving Future Internet research and development. We have developed a model and framework for generic resource federation and have implemented an according prototype system that allows federating heterogeneous resources on a pan-European scale. With this paper we show how heterogeneous federated resources can be interconnected by means of meshed domain border gateways that provide separated Layer 2 tunnels for resource groupings following our federation model. This enables to dynamically build virtual overlay networks over the public Internet to support various experimentation purposes.