Configuring Basic BGP/MPLS IP VPN

The basic BGP/MPLS IP VPN refers to a VPN that is established on one SP's MPLS backbone network that does not span multiple ASs. The role of each PE, P, or CE of the basic BGP/MPLS IP VPN is unique. For example, a router cannot function as both a PE and a CE.

Configuring a VPN Instance: A VPN instance can be configured on the PE to manage VPN routes.

Binding Interfaces to a VPN Instance: After an interface is bound to a VPN instance, the interface becomes a part of the VPN. Packets entering the interface will be forwarded based on the VRF table of the VPN.

Establishing MP-IBGP Peer Relationships Between PEs: MP-IBGP uses extended community attributes to advertise VPNv4 routes between PEs.

Configuring Route Exchange Between PEs and CEs: To ensure that CEs can communicate, the PEs and CEs must be capable of exchanging routes.