VRF

Virtual (VPN) Routing and Forwarding

In IP-based computer networks, (VRF) is a technology that allows multiple instances of a routing table to co-exist within the same router at the same time. Because the routing instances are independent, the same or overlapping IP addresses can be used without conflicting with each other. Network functionality is improved because network paths can be segmented without requiring multiple routers.

Cisco implementation - VPN routing and forwarding, the key element in the Cisco MPLS VPN technology