Methods and systems are provided for routing traffic through a virtual router-based network switch. According to one embodiment, a method for routing packets in a router includes establishing a flow data structure, which identifies a packet flow through a virtual router in the router. When a packet is...http://www.google.com.au/patents/US7522604?utm_source=gb-gplus-sharePatent US7522604 - Routing traffic through a virtual router-based network switch