Towards Voronoi-Based Backup Routing for Large-Scale Distributed Applications

The advent of critical applications that rely on Internet-based communication sheds light upon the robustness limitations of todays’s Internet infrastructure. A well-known expedient are overlay applications that provide means to reroute traffic in case of network failures, but the induced overhead of existing techniques is often considered prohibitively high. Within this work we present a highly scalable backup path mechanism for large-scale distributed applications that makes use of a spherical Voronoi-based technique for peer organization and a position-dependent path selection strategy. The achieved resilience benefit of the resulting backup paths is evaluated with simulations based on real-world data, which show that connection loss in about 75% of wide-area network failures can be avoided by only two proactively selected backup peers.