🌐 L2VPN vs L3VPN in MPLS – Explained Simply

MPLS VPNs are the backbone of modern enterprise and service provider
networks. The two most common models are L2VPN and L3VPN — each
solving a different problem.

🔹 L2VPN (Layer 2 VPN)
Think of this as extending your LAN across locations.
✔ Customer controls routing
✔ Provider transports Ethernet frames
✔ Ideal for Data Center Interconnect & LAN extension
✔ Examples: VPWS, VPLS, EVPN

🔹 L3VPN (Layer 3 VPN)
Here, the service provider handles routing.
✔ Provider manages VRFs & MP-BGP
✔ Highly scalable and secure
✔ No broadcast traffic
✔ Best for enterprise WANs

⚡ In one line:
➡️ L2VPN = Frames are carried
➡️ L3VPN = Routes are carried

🎯 Which one to choose?
Need full control and Layer 2 transparency? Go L2VPN
Need scalable, managed WAN connectivity? Go L3VPN
📌 Understanding both is essential for designing efficient MPLS networks.