300-515 SPVI: Implementing Cisco Service Provider VPN ServicesDemo

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QuestionQ1

Layer 3 VPNs

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Refer to the exhibit. PE1 and PE2 exchange VPNv4 routes for CE1 and CE2, and PE3 holds the default route to the internet. If all three devices operate normally, which two conclusions describe this configuration?

Choose two
  • A The CE1 and CE2 VRFs can exchange routes only between their respective VRFs on PE1 and PE2.
  • B All three routers must be running a distance-vector routing protocol.
  • C All three routers must be running MP-BGP.
  • D The CE1 and CE2 VRFs can access the default route provided by the Internet VRF.
  • E Only the CE2 VRF can access the default route provided by the Internet VRF.
Explanation

A VRF imports an exported VPN route only when the route’s route target matches one of its import route targets. The Internet VRF exports the default route with route target 300:3, which CE2 imports but CE1 does not; therefore, only CE2 can use that default route. VPNv4 reachability is exchanged between PE routers through MP-BGP.

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