Layer 2 MPLS VPN
With a Layer 2 MPLS VPN, the MPLS network allows customer edge (CE) routers at different sites to form routing protocol neighborships with one another as if they were Layer 2 adjacent. Therefore, you can think of a Layer 2 MPLS VPN as a logical Layer 2 switch, as depicted in Figure 2-1.
Figure 2-1 Logical View of a Layer 2 MPLS VPN
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