300-415 Question 103
Single answerYou are tasked with deploying an SD-WAN router at a branch office. The branch office has dual Internet Service Providers (ISPs) for redundancy. The design requires both links to be active and used for traffic. Which deployment method should you choose to ensure both links are utilized efficiently and dynamically adjusted based on performance metrics?
- A
Single TLOC with Dual ISP connections
- B
Dual TLOCs with Static Routes
- C
Dual TLOCs with Dynamic Path Selection
- D
Single TLOC with Load Balancing
Show answer and explanation
Correct answer: C
Explanation
In SD-WAN, Dual TLOCs with Dynamic Path Selection is the ideal deployment method when you need to actively utilize both ISP links while dynamically adjusting traffic based on real-time performance metrics. This ensures optimal use of available bandwidth, improved redundancy, and application performance.
- A. Incorrect.
Single TLOC with Dual ISP connections does not fully utilize both links dynamically. It typically assigns a single tunnel per TLOC, limiting the ability to balance traffic across ISPs dynamically.
- B. Incorrect.
Dual TLOCs with Static Routes uses static routing, which does not provide dynamic adjustments based on link performance. This is not suitable for ensuring efficient utilization of both links.
- C. Correct.
Dual TLOCs with Dynamic Path Selection leverages SD-WAN's ability to dynamically route traffic based on real-time performance metrics, ensuring both links are actively used and optimized.
- D. Incorrect.
Single TLOC with Load Balancing does not provide the flexibility and redundancy of dual TLOCs, and it may not dynamically adjust traffic based on link performance.