FCSS – SD-WAN Architect 7.4 — Question 35

You are planning a new SD-WAN deployment with the following criteria:

Two regions -
Most of the traffic is expected to remain within its region
No requirement for inter-region ADVPN
To remain within the recommended best practices, which routing protocol should you select for the overlays?

Answer options

• A. IBGP with BGP on loopback within each region and EBGP between the regions.
• B. OSPF for the routing within each region and EBGP between the regions.
• C. IBGP within each region and between the regions.
• D. IBGP with BGP per overlays within each region and IBGP with BGP on loopback between the regions.

Correct answer: A

Explanation

The correct answer is A because it follows the best practices for SD-WAN deployments by utilizing IBGP for intra-region routing and EBGP for inter-region routing, ensuring efficient traffic management. Options B and D introduce OSPF and additional complexity, which are not necessary given the deployment criteria. Option C does not include the required BGP configuration for the loopback interfaces, which is essential for optimal routing in this scenario.