VCP-VCF Administrator 2024 Question 333
Select 3You are tasked with checking the health of an NSX Edge Cluster in a VMware Cloud Foundation environment. You notice that traffic is not being forwarded correctly between segments connected to a tier-1 router and the external network. Which of the following steps should you take to identify and resolve the issue?
- A
Verify that the tier-0 router is in an active-active HA mode.
- B
Check the Edge Cluster usage and ensure that the Edge nodes are not overloaded.
- C
Verify that the tier-1 router is correctly linked to the tier-0 router.
- D
Ensure BGP (Border Gateway Protocol) is configured and established on the tier-0 router.
- E
Restart the NSX Manager services to automatically sync the configuration.
Show answer and explanation
Correct answers: B, C, D
Explanation
To ensure the health of an NSX Edge Cluster, it is critical to check the resource usage of Edge nodes, the configuration and connectivity between tier-1 and tier-0 routers, and the routing protocols such as BGP on the tier-0 router. These steps directly address the traffic forwarding issue described in the scenario. Verifying HA mode or restarting NSX Manager services is either irrelevant or an excessive action in this context.
- A. Incorrect.
While tier-0 routers can operate in active-active mode, this is not necessarily related to the traffic forwarding issue described. This step is not directly relevant to resolving the problem in this scenario.
- B. Correct.
Edge nodes handle data plane traffic in NSX Edge Clusters. If they are overloaded or under-resourced, traffic forwarding issues may occur. Checking their usage helps troubleshoot such problems.
- C. Correct.
For proper north-south traffic flow, the tier-1 router must be correctly linked to the tier-0 router. If this connection is misconfigured or missing, traffic will not flow correctly.
- D. Correct.
BGP is commonly used for dynamic routing on the tier-0 router, and a misconfigured or down BGP session can prevent traffic from reaching external networks. Verifying its configuration is a key troubleshooting step.
- E. Incorrect.
Restarting the NSX Manager services is a drastic action and is not recommended as the first step for troubleshooting traffic issues. It may lead to additional downtime and does not directly address the problem described.