What is the difference between L2 VPN and L3 VPN? Routing and Switching knowledge.. Certifications...

Question

Accepted Answer

L2 VPN operates at the data link layer, while L3 VPN operates at the network layer.

L2 VPN provides layer 2 connectivity between remote sites, while L3 VPN provides layer 3 connectivity.
L2 VPN uses MAC addresses for forwarding, while L3 VPN uses IP addresses.
L2 VPN is typically used for connecting LANs, while L3 VPN is used for connecting networks.
L2 VPN is transparent to the network layer protocols, while L3 VPN requires routing protocols.
Examples of L2 VPN technologies include Ethernet VPN (EVPN) and Virtual Private LAN Service (VPLS), while examples of L3 VPN technologies include MPLS VPN and IPsec VPN.

Accepted Answer

L2 is transparent to applications whereas L3 is less transparent.

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