VCP-VCF Administrator 2024 Question 335
Select 4You are a VMware Cloud Foundation Administrator troubleshooting an NSX-T overlay network connectivity issue. A virtual machine (VM) on a logical segment cannot communicate with another VM on a different logical segment. After verifying that the VMs' IP configurations are correct, you suspect an issue with the Tier-1 Gateway or the Transport Zones. Which of the following actions would you take to resolve the issue?
- A
Verify that the logical segments are connected to the correct Tier-1 Gateway.
- B
Check the MTU settings on the physical network and ensure they match the NSX-T overlay requirements.
- C
Ensure that the Tier-1 Gateway is connected to the Tier-0 Gateway and that routing is properly configured.
- D
Restart the ESXi host where the affected VMs are running to refresh the NSX-T configuration.
- E
Verify that the Transport Zones used by the logical segments are correctly configured and mapped to the appropriate uplinks.
Show answer and explanation
Correct answers: A, B, C, E
Explanation
When troubleshooting NSX-T overlay connectivity issues in VMware Cloud Foundation, it is critical to verify configurations such as logical segment connections to gateways, MTU settings, routing configurations, and Transport Zone mappings. These elements ensure proper communication between VMs across logical segments. Restarting the ESXi host is not a recommended or effective troubleshooting step in this specific scenario.
- A. Correct.
Logical segments must be properly connected to the correct Tier-1 Gateway for communication between segments to occur.
- B. Correct.
The MTU size on the physical network must match the NSX-T overlay requirements (typically 1600 bytes) to avoid packet fragmentation and communication issues.
- C. Correct.
The Tier-1 Gateway must be connected to the Tier-0 Gateway, and routing between them must be properly configured for cross-segment communication.
- D. Incorrect.
Restarting the ESXi host is not a valid troubleshooting step in this scenario and does not address the potential configuration issues.
- E. Correct.
Transport Zones must be correctly configured and mapped to the appropriate uplinks to ensure proper communication within the NSX-T overlay network.