VRF Lite (Virtual Routing & Forwarding)

- technology similar to VLANs but working at Layer 3.

- implemented in IP network router that allows two or more VPNs, where same IP Subnet can be overlapped among VPNs without conflicting each other

Key Concept - Each VRF instance is a separate route

- another term for VRF is VPN Routing and Forwarding, key element in Cisco MPLS VPN technology.

Lab Topology

Command Guide

1) To configure vrf --> ip vrf NAME (name is case sensitive)

2) Associate the interface with vrf --> ip vrf forwarding NAME

3) To check vrf routing table --> sh ip route vrf NAME

4) To verify the connectivity --> ping vrf NAME ip address