Which protocol is used to transport VPN labels between PE routers?

Last Updated: Jun 29, 2026
IT Exam Items Repository › Category: CCNP ENARSI v9 › Which protocol is used to transport VPN labels between PE routers?

Which protocol is used to transport VPN labels between PE routers?

  • the core IGP
  • RSVP
  • MP-BGP
  • LDP

Explanation: The egress PE router allocates a VPN label for every route it learns from its connected CE routers. This VPN label is transported from the egress PE to the ingress PE routers using Multiprotocol BGP (MP-BGP). Every MP-BGP update carries the VPNv4/VPNv6 prefix along with the specific label assigned by the egress PE.

Related exam: Checkpoint Exam: MPLS and VPN Technologies

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