ANS-C01 Question 141
Select 3You are setting up a Direct Connect connection between your on-premises data center and AWS. To ensure high availability and optimal performance, you decide to configure link aggregation between multiple Direct Connect virtual interfaces. Which of the following statements are true regarding Link Aggregation Groups (LAG) in AWS Direct Connect?
- A
A LAG can only be created if all connections are of the same bandwidth.
- B
LAG simplifies management by aggregating multiple physical connections into a single logical interface.
- C
Each connection in the LAG can have different speeds and still operate together effectively.
- D
Jumbo frames are not supported when using LAG with AWS Direct Connect.
- E
If one of the physical links in the LAG fails, the traffic is automatically rerouted to the remaining operational links.
Show answer and explanation
Correct answers: A, B, E
Explanation
AWS Direct Connect Link Aggregation Groups (LAG) allow you to combine multiple physical connections into a single logical interface, simplifying management and providing redundancy. All connections in the LAG must have the same bandwidth, and if one connection fails, the traffic seamlessly reroutes to the remaining links. Additionally, LAG supports jumbo frames, contrary to the incorrect option provided.
- A. Correct.
Correct: AWS requires all connections in a LAG to have the same bandwidth to ensure consistent performance.
- B. Correct.
Correct: LAG combines multiple physical connections into a single logical interface, simplifying management and configuration.
- C. Incorrect.
Incorrect: All connections in a LAG must have the same speed; mixing speeds is not supported.
- D. Incorrect.
Incorrect: Jumbo frames are supported with AWS Direct Connect, including when using LAG.
- E. Correct.
Correct: LAG provides redundancy, and if one physical connection fails, the traffic is automatically routed through the remaining links.