VCP-VCF Administrator 2024 Question 218
Select 3An organization has deployed VMware NSX in their VMware Cloud Foundation environment. During Day 2 operations, a network administrator notices that one of the VMs is unable to communicate with other VMs on the same overlay network. Which of the following actions should the administrator perform to troubleshoot and resolve the issue?
- A
Verify the VM's VIF (Virtual Interface) attachment status in the NSX Manager.
- B
Check the transport zone configuration to ensure it is properly associated with the overlay network.
- C
Reboot the ESXi host where the VM resides to refresh the network configuration.
- D
Examine the firewall rules in NSX to ensure there are no policies blocking communication.
- E
Verify if the VM's compute cluster is associated with the correct NSX-T segment.
Show answer and explanation
Correct answers: A, B, D
Explanation
To resolve the communication issue between VMs on the same overlay network, the administrator must ensure that the VM is properly attached to the network (VIF status), the transport zone is correctly configured, and no firewall rules are blocking the traffic. These are critical steps in Day 2 operations and troubleshooting within VMware NSX.
- A. Correct.
Verifying the VM's VIF attachment status in the NSX Manager is crucial as it confirms whether the VM is properly connected to the network.
- B. Correct.
Checking the transport zone configuration ensures that the overlay network is correctly configured and associated with the transport zone, which is essential for VM communication.
- C. Incorrect.
Rebooting the ESXi host is not a recommended troubleshooting step unless absolutely necessary. This option is not relevant to the specific issue described.
- D. Correct.
Firewall rules in NSX could block communication between VMs. Examining them ensures there are no misconfigured rules causing the issue.
- E. Incorrect.
The compute cluster association with an NSX-T segment is not directly related to troubleshooting VM communication on an overlay network. This step is unnecessary in this scenario.