300-420 · Question #141
Refer to the exhibit. An architect is designing a BGP solution to connect a remote branch to a service provider. There are several prefixes within the branch that the company does not want to be…
The correct answer is D. Attach the No-Export community with the prefixes to exclude. When a No-Advertise community is attached to a route, the BGP speaker won’t advertise the route to any internal or external BGP peers. When a No-Export community is attached to a route, the router won’t advertise the route to external peers--only to internal peers.
Question
Refer to the exhibit. An architect is designing a BGP solution to connect a remote branch to a service provider. There are several prefixes within the branch that the company does not want to be advertised to the internet. Which solution should the architect use to accomplish this?
Exhibit
Options
- ASet the BGP Internet community for all prefixes.
- BImplement the NOPEER community.
- CUse the BGP No-Advertise community for the prefixes to exclude.
- DAttach the No-Export community with the prefixes to exclude
How the community answered
(21 responses)- A10% (2)
- B14% (3)
- C5% (1)
- D71% (15)
Explanation
When a No-Advertise community is attached to a route, the BGP speaker won’t advertise the route to any internal or external BGP peers. When a No-Export community is attached to a route, the router won’t advertise the route to external peers--only to internal peers.
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