2V0-21.23 Question 167
Single answerYour organization has recently deployed a vSphere Distributed Switch (vDS) to simplify network management across your ESXi hosts. One of the administrators reports intermittent connectivity issues for a critical VM and suspects it is related to the vDS configuration. Upon investigation, you find that the VM is connected to a port group on the vDS, and the port group is configured with a teaming policy that uses multiple uplinks. Which setting on the vDS should you check to ensure network traffic is flowing properly for the VM?
- A
Check the Failover Order in the teaming policy to ensure at least one active uplink is available.
- B
Verify that Network I/O Control (NIOC) is enabled and configured correctly for the port group.
- C
Ensure that Promiscuous Mode is enabled for the port group to allow unrestricted traffic.
- D
Check the VLAN ID configuration on the port group to ensure it matches the physical switch settings.
Show answer and explanation
Correct answer: A
Explanation
When using a vSphere Distributed Switch with a teaming policy, the Failover Order configuration determines how uplinks are used for traffic. If there are no active uplinks in the policy, VMs connected to the port group may experience connectivity issues. Ensuring that at least one uplink is active is crucial for proper network traffic flow. While other settings like VLAN IDs and NIOC are important for overall network functionality, they are not the root cause of the issue described in this scenario.
- A. Correct.
This is the correct option. If there are no active uplinks in the Failover Order setting, network traffic will not flow properly for VMs connected to the port group. Ensuring at least one active uplink is critical for connectivity.
- B. Incorrect.
While Network I/O Control (NIOC) can manage bandwidth allocation, it is not directly responsible for intermittent connectivity issues. This setting is unlikely to resolve the problem described in the scenario.
- C. Incorrect.
Promiscuous Mode allows a VM to receive all network traffic on the vSwitch, but it is not necessary for resolving intermittent connectivity issues related to teaming policies.
- D. Incorrect.
VLAN ID mismatches can cause connectivity issues, but in this scenario, the problem is related to the teaming policy. This setting should also be checked, but it is not the primary focus of the question.