2V0-41.24 Question 99
Single answerA company has deployed VMware NSX in their environment and is utilizing two-tier routing. The network team notices performance issues when routing traffic between two application tiers hosted on different logical switches within the same data center. What could be the cause of this issue, and how should it be resolved?
- A
East-west traffic is being unnecessarily routed through the Tier-0 Gateway due to improper configuration.
- B
The Tier-1 Gateway is misconfigured, causing north-south traffic to bypass the Tier-0 Gateway.
- C
The Tier-0 Gateway has reached its maximum throughput capacity, causing congestion.
- D
The application tiers are on separate VLANs, which NSX logical routing does not support.
Show answer and explanation
Correct answer: A
Explanation
In NSX two-tier routing, Tier-1 Gateways handle east-west traffic within the data center, while Tier-0 Gateways handle north-south traffic for external communication. If east-west traffic is unnecessarily routed through the Tier-0 Gateway, it indicates a misconfiguration that forces internal traffic to take an inefficient path. Correcting this ensures that east-west traffic remains within the Tier-1 Gateway, improving performance and reducing unnecessary load on the Tier-0 Gateway.
- A. Correct.
East-west traffic within the same data center should not traverse the Tier-0 Gateway. If it does, it indicates a misconfiguration in the logical routing setup, specifically between Tier-1 and Tier-0 Gateways.
- B. Incorrect.
This is incorrect because north-south traffic bypassing the Tier-0 Gateway would not cause east-west traffic issues. North-south traffic is meant for external communication, not internal tier communication.
- C. Incorrect.
While throughput capacity issues on the Tier-0 Gateway can affect performance, they would primarily impact north-south traffic rather than east-west traffic within the data center.
- D. Incorrect.
NSX logical routing supports communication between VLANs through logical switches, so this is not a valid explanation for the issue.