Which BGP function do MPLS L3 VPNs use to transport RTs?

Last Updated: Jun 29, 2026
IT Exam Items Repository › Category: CCNP ENARSI v9 › Which BGP function do MPLS L3 VPNs use to transport RTs?

Which BGP function do MPLS L3 VPNs use to transport RTs?

  • standard communities
  • metric
  • extended communities
  • MED

Explanation: Route Targets (RTs) are implemented as extended BGP communities. These 64-bit attributes are attached to VPNv4/VPNv6 routes to indicate VPN membership, allowing receiving PE routers to decide which routes should be imported into their local VRFs.

Related exam: Checkpoint Exam: MPLS and VPN Technologies

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