2V0-41.24 Question 24
Select 2An organization has deployed VMware NSX and is troubleshooting a network connectivity issue where virtual machines cannot communicate across different hosts. Upon investigation, the administrator suspects a failure in one of the control plane components. Which of the following control plane components or related functions might be responsible for this issue?
- A
NSX Controller failure impacting logical switch control
- B
Distributed firewall rules not being enforced at the data plane
- C
Failure of the Edge Transport Node routing functions
- D
Synchronization issues between NSX Manager and NSX Controllers
- E
VXLAN Tunnel Endpoints (VTEPs) unable to establish an overlay tunnel
Show answer and explanation
Correct answers: A, D
Explanation
The control plane in VMware NSX is responsible for managing and distributing network state information to the data plane. The NSX Controller is a key component of the control plane, and its failure can disrupt logical switch operations. Additionally, synchronization issues between NSX Manager and NSX Controllers can lead to incomplete or incorrect configuration information being pushed to the data plane, causing communication failures. Understanding the distinction between control plane and data plane components is essential for identifying the root cause of connectivity issues in NSX environments.
- A. Correct.
The NSX Controller is a critical control plane component responsible for managing logical switch control, including MAC address tables and ARP entries. A failure here can disrupt communication between VMs across hosts.
- B. Incorrect.
Distributed firewall enforcement occurs in the data plane, not the control plane. Therefore, this is not related to the control plane's functionality.
- C. Incorrect.
The Edge Transport Node handles north-south traffic routing and is part of the data plane rather than the control plane. It is unrelated to the issue described.
- D. Correct.
Synchronization issues between the NSX Manager and NSX Controllers can cause discrepancies in control plane information, potentially leading to communication problems across hosts.
- E. Incorrect.
VXLAN Tunnel Endpoints (VTEPs) are part of the data plane, responsible for encapsulating and decapsulating traffic. While important for connectivity, issues with VTEPs are not directly related to control plane functions.