JN0-664: Service Provider Routing and Switching, ProfessionalDemo

By Juniper · Question Mode

QuestionQ8

Layer 3 VPNs

Click the Exhibit button.

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With reference to the exhibit, PE-1 and PE-2 receive route updates for VPN-B even though neither services that VPN.

Which two actions would optimize this process?

Choose two
  • A Configure the resolution rib bgp.l3vpn.0 resolution-ribs inet.0 statement on the PEs.
  • B Configure the family route-target statement on the RR.
  • C Configure the resolution rib bgp.l3vpn.0 resolution-ribs inet.0 statement on the RR.
  • D Configure the family route-target statement on the PEs.
Explanation

BGP route-target filtering enables PE routers to advertise their route-target interest to the route reflector, allowing the reflector to advertise only VPN routes whose route targets are needed by each PE. The family route-target address family must be enabled on both ends of the PE–RR BGP sessions. VPN RIB-resolution settings affect next-hop resolution, not route-update filtering.

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