Description: Layer 2 Virtual Private Network (L2VPN) is a type of VPN that operates at the data link layer, allowing the interconnection of local networks over a public network infrastructure. Unlike layer 3 VPNs, which function at the network layer and use IP addresses for routing, L2VPN focuses on the transmission of Ethernet frames, enabling remote networks to behave as if they are on the same local network. This is particularly useful for businesses that need to securely and efficiently connect branches or data centers. L2VPN can implement various protocols, such as MPLS (Multiprotocol Label Switching) and VPLS (Virtual Private LAN Service), which facilitate the creation of scalable and flexible virtual private networks. Additionally, they offer features like traffic segmentation and quality of service (QoS), making them an attractive option for applications requiring high performance and low latency. In summary, L2VPN is a powerful solution for network function virtualization, allowing organizations to extend their networks securely and efficiently over public data connections.
