A robust VPN implementation based on resilient overlay network capabilities

Abstract

Typical Virtual Private Network (VPN) is a private data network over the public network i.e. Internet and inherits all the underlying network problems like slow link failure recovery, inability to detect path or performance failures and enforcement of blunt policy expression. Resilient Overlay Network (RON) seeks to quickly detect and respond to network failures by aggressively probing the paths connecting its nodes. Routing based on application specific metrics ensures tighter integration with applications and an expressive policy routing. We have implemented a software application that runs as a service on each RON node to provide the functionalities of tunneling amongst participating RON nodes.