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JN0-648 · Question #113

Click the Exhibit button. Which well-known community needs to be used to restrict 10.0.0.0/8 from being advertised to AS 2?

The correct answer is D. no-export. no-advertise--Routes in this community name must not be advertised to other BGP peers. no-export--Routes in this community must not be advertised outside a BGP confederation boundary. A stand alone autonomous system that is not part of a confederation should be considered a…

BGP

Question

Click the Exhibit button. Which well-known community needs to be used to restrict 10.0.0.0/8 from being advertised to AS 2?

Exhibit

JN0-648 question #113 exhibit

Options

  • Ano-publish
  • Bno-advertise
  • Cno-export-subconfed
  • Dno-export

How the community answered

(29 responses)
  • A
    3% (1)
  • B
    10% (3)
  • C
    3% (1)
  • D
    83% (24)

Explanation

no-advertise--Routes in this community name must not be advertised to other BGP peers. no-export--Routes in this community must not be advertised outside a BGP confederation boundary. A stand alone autonomous system that is not part of a confederation should be considered a confederation itself. no-export-subconfed--Routes in this community must not be advertised to external BGP peers, including peers in other members' ASs inside a BGP confederation.

Topics

#BGP well-known communities#no-export#route advertisement restriction#AS boundary

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