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Enterprise Layer 3 (L3) network virtualization enables one physical network to support multiple L3 virtual private networks (L3VPNs). To a group of end users, it appears as if each L3VPN is connected to a dedicated network with its own routing information, quality of service (QoS) parameters, and security and access policies.
This functionality has numerous applications, including:
For each use case requiring network separation, a L3VPN infrastructure offers the following key benefits over non-virtualized infrastructures or separate physical networks: