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Netflow v9 sensor does not collect all flows

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Hello, i implemented the Netflow-sensor and let it collect flows for a usual busniess day. But it seems to me that there was too little traffic (about 10GB). So i installed another Netflow-collector for testing purpose and it collected about 40GB of traffic. I set the active-flow-timeout on 5 minutes which is much higher than the one on the Netflow-exporter. Does someone now why there is such a big difference?

Regards, Jan R.

active-flow-timeout littletraffic netflow-v9

Created on Nov 13, 2014 7:49:49 AM by  Jan Richter (0) 1



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Hello,

Are you using the NetFlow v5 (v9) sensor or the NetFlow (Custom) Sensor? Do you use any filters in the sensor settings?

Best regards

Created on Nov 17, 2014 9:59:37 AM by  Felix Saure [Paessler Support]

Last change on Nov 17, 2014 9:59:56 AM by  Felix Saure [Paessler Support]



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Hello Felix,

I've tried with both sensors (v9 and Custom/no filters). The problem is the same with both of them.

Regards

Created on Nov 17, 2014 10:29:11 AM by  Jan Richter (0) 1



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Hello,

Please forward the Probe State Files to [email protected] and refer to this knowledge base article. Please forward the files from the Probe where you installed the Flow sensor We will have a look if any NetFlow packets are dropped.

Best regards

Created on Nov 17, 2014 1:41:14 PM by  Felix Saure [Paessler Support]



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.