350-401 Question 624
Single answerA network engineer is troubleshooting an issue where NetFlow data is not being exported from a router to the collector. The router is configured with Flexible NetFlow, but the collector does not show any received data. Upon investigation, the engineer notices that the NetFlow monitor is applied to the correct interface. However, the issue persists. What could be the cause of this problem?
- A
The NetFlow exporter is not configured or is misconfigured.
- B
The NetFlow version on the collector does not match the NetFlow version configured on the router.
- C
The NetFlow monitor is applied to an interface in the inbound direction instead of the outbound direction.
- D
The router does not support Flexible NetFlow on the specific interface.
Show answer and explanation
Correct answer: A
Explanation
The NetFlow exporter is responsible for sending the collected flow data to a NetFlow collector. If the exporter is not configured or is misconfigured (e.g., incorrect IP address or port, missing exporter in the monitor configuration), the collector will not receive any data. Troubleshooting should always include verifying the configuration of the exporter and ensuring it is correctly associated with the monitor.
- A. Correct.
Correct. If the NetFlow exporter is not configured or is misconfigured, the flow data will not be sent to the collector, even if other configurations like monitors and records are correctly applied.
- B. Incorrect.
Incorrect. Mismatched NetFlow versions could lead to data parsing issues, but the collector would still show data being received, albeit unusable.
- C. Incorrect.
Incorrect. NetFlow monitors can typically be applied in either direction. While directionality determines the type of flow data collected, it would not completely stop flow data from being exported.
- D. Incorrect.
Incorrect. If the interface did not support Flexible NetFlow, the configuration would not be applied, and the issue would have been identified earlier.