What is the key difference between Layer 2 and Layer 3 VPNs?

The correct answer is C. Layer 2 VPNs extend a LAN across a service provider network, and Layer 3 VPNs allow for the. The key distinction is that Layer 2 VPNs extend a customer’s LAN across the provider network, making remote sites appear as if they are on the same Ethernet segment. Layer 3 VPNs, on the other hand, separate customer routing domains using VRFs and MP-BGP, providing routed…

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ALayer 2 VPNs allow for the routing of IP packets between sites, and Layer 3 VPNs provide a
BLayer 2 VPNs support only point-to-point connections, and Layer 3 VPNs support point-to-
CLayer 2 VPNs extend a LAN across a service provider network, and Layer 3 VPNs allow for the
DLayer 2 VPNs use GRE encapsulation, and Layer 3 VPNs use L2TP encapsulation.

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A
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C
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Explanation

The key distinction is that Layer 2 VPNs extend a customer’s LAN across the provider network, making remote sites appear as if they are on the same Ethernet segment. Layer 3 VPNs, on the other hand, separate customer routing domains using VRFs and MP-BGP, providing routed connectivity between sites with isolated routing tables per customer.

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#Layer 2 VPN#Layer 3 VPN#LAN extension#VPN comparison

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