2V0-41.24 Question 172
Single answerAn organization has deployed NSX-T Data Center with stateful active-active NAT for their network. During testing, they observe that a specific NAT session fails when traffic is routed through an alternate edge node in the active-active cluster. What could be the possible reason for this behavior?
- A
The NAT rule is not configured with a proper failover mechanism.
- B
Stateful active-active NAT requires session synchronization between edge nodes, which might be misconfigured.
- C
Stateful active-active NAT does not support failover scenarios, leading to session loss.
- D
The edge nodes are configured in active-standby mode, which is incompatible with stateful active-active NAT.
Show answer and explanation
Correct answer: B
Explanation
Stateful active-active NAT requires session state synchronization between edge nodes in an active-active cluster. If synchronization is misconfigured or fails, the alternate edge node cannot maintain stateful NAT sessions, leading to session loss. Proper configuration and monitoring of session synchronization are critical for ensuring seamless failover in stateful active-active NAT deployments.
- A. Incorrect.
This is incorrect because the failover mechanism is related to synchronization between edge nodes, not the NAT rule configuration itself.
- B. Correct.
This is correct because stateful active-active NAT requires session synchronization between edge nodes to maintain session state across multiple paths. If session synchronization is misconfigured or not functioning properly, traffic routed through an alternate edge node may fail.
- C. Incorrect.
This is incorrect because stateful active-active NAT does support failover scenarios as long as session synchronization is properly configured.
- D. Incorrect.
This is incorrect because the scenario explicitly mentions an active-active configuration, not active-standby.