In VRF-Lite, which statement is true?
- P routers are required in the network
- VRFs are configured without MP-BGP or MPLS transport
- VPN labels identify customer routes
- MPLS labels are required for packet forwarding
Explanation: According to the sources, VRF-Lite is a feature that allows for the configuration and maintenance of multiple VRF instances within a single PE router to support independent routing domains . While a standard MPLS L3 VPN architecture uses MP-BGP to propagate customer routes and MPLS labels for forwarding across a provider core , VRF-Lite distinguishes routes for different VPNs based on input interfaces . Therefore, VRFs are configured without MP-BGP or MPLS transport, enabling traffic isolation and the use of overlapping address spaces without requiring a full MPLS control or data plane .
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