MPLS VPN

Layer 3 (VPRN) Point-to-point MPLS VPNs employ VLL (virtual leased lines) for providing Layer 2 point-to-point connectivity between two sites.

Some examples of how point-to-point VPNs might be used by utilities include: Layer 2 MPLS VPNs, or VPLS (virtual private LAN service), offers a “switch in the cloud” style service.

L2 VPNs are typically used to route voice, video, and AMI traffic between substation and data center locations.

Multiprotocol BGP (MP-BGP) is required in the cloud to utilize the service, which increases complexity of design and implementation.

L3 VPNs are typically not deployed on utility networks due to their complexity; however, a L3 VPN could be used to route traffic between corporate or datacenter locations.