JN0-664: Service Provider Routing and Switching, ProfessionalDemo

By Juniper · Question Mode

QuestionQ5

BGP

Click the Exhibit button.

Question Image

You must exchange routes between R1 and R4 as shown in the exhibit. These two routers use the same AS number.

Which two steps will accomplish this task?

Choose two
  • A Configure the BGP group with the advertise-peer-as parameter on R2 and R3.
  • B Configure the BGP group with the as-override parameter on R1 and R4.
  • C Configure the BGP group with the advertise-peer-as parameter on R1 and R4.
  • D Configure the BGP group with the as-override parameter on R2 and R3.
Explanation

advertise-peer-as on R2 and R3 overrides Junos’s default suppression of routes learned from one EBGP peer when advertising them to another EBGP peer in the same AS as the originating peer. as-override on R2 and R3 replaces occurrences of the outbound peer’s AS in the AS path with the provider AS, so R1 and R4 can accept routes originating from their shared AS without triggering AS-path loop prevention.

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