NSE 7 – SD-WAN 7.2 — Question 38

Which statement about using BGP for ADVPN is true?

Answer options

• A. IBGP is preferred over EBGP, because IBGP preserves next hop information.
• B. You must configure AS path prepending.
• C. You must configure BGP communities.
• D. You must use BGP to route traffic for both overlay and underlay links.

Correct answer: A

Explanation

The correct answer is A because IBGP maintains the next hop attribute, which is crucial for ADVPN to function correctly. Options B and C are not mandatory configurations in ADVPN and can be used based on specific requirements. Option D is also incorrect as BGP is primarily used for overlay link routing, while underlay routing can utilize different protocols.