VRFs are to Layer 3 as VLANs are to Layer 2 and delimit the domain of an IP network within a router. The Cisco website has a more formal definition: VRF–A VPN Routing/Forwarding instance. A VRF ...

Here are Part I, Part II,and Part III,, Part IV, Part V, Part VI, Part VII, Part VIII, and Part IX. Data-path virtualization essentially creates multiple separate logical networks over a single, ...