For which two reasons does the label stack contain two labels when supporting MPLS VPNs? (Choose two.)

Last Updated: Jun 29, 2026
IT Exam Items Repository › Category: CCNP ENARSI v9 › For which two reasons does the label stack contain two labels when supporting MPLS VPNs? (Choose two.)

For which two reasons does the label stack contain two labels when supporting MPLS VPNs? (Choose two.)

  • The first label indicates the LSP that will be used to reach the egress router.
  • The first label indicates the VPN that the packet belongs to.
  • The second label indicates the VPN that the packet belongs to.
  • The second label indicates the LSP that will be used to reach the egress router.
  • The first label indicates which VRF to use

Explanation: MPLS L3 VPNs use a two-level label stack to forward packets across the provider core. The first (top) label is assigned by LDP and defines the Label-Switched Path (LSP) used to reach the egress PE router. The second (bottom) label is advertised via MP-BGP and identifies the specific VPN or VRF the packet belongs to, telling the egress PE how to forward the packet toward the correct customer site.

Related exam: Checkpoint Exam: MPLS and VPN Technologies

About The Author

ITExamAnswers Editorial Team

The ITExamAnswers Editorial Team is a dedicated group of certified IT professionals and network engineers. We rigorously review, verify, and update all exam materials to ensure you receive the most accurate and reliable resources for your certification journey.