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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA 4.2.3 Administrator Guide > NTA settings > Set the sampling rate manually

Set the sampling rate manually

Sampled flows contain information about their sampling rate. SolarWinds NTA uses this information to correctly display sampled flows data.

You can also manually specify the sampling rate for flows exported from your nodes. This allows you to resolve issues where the appropriate sampling information is not correctly included in the flows, it is not automatically detected, or when you want to see unsampled flows for a device which exports sampled flows.

Manually defined settings override the automatically detected sampling rates.

Manual settings are defined on the node level and are applied on all interfaces monitored for the node.

Access the management page

  1. Click Settings > All Settings.
  2. Under Product Specific Settings, click NTA Settings.
  3. Click NetFlow Sources.

Edit the sampling rate for flows exported from a node

  1. Use the Show list to filter the devices to display.
  2. Make sure the NetFlow box for the appropriate node is selected. Next to the node, you can see the current sampling rate used for flows from the node and from the selected interfaces: either Custom or Auto-Detect.
  3. Click Edit to change the current settings.
  4. Select Override Auto-Detected Sampling Rate.
  5. Enter a value, such as 100.
  6. Click Save. Your setting displays in the NetFlow Sample Rate column.
  7. Click Submit.

Process sampling flows as if they were not sampled

  1. Use the Show list to filter the devices to display.
  2. Click Edit next to the node whose traffic you want to see as unsampled flows.
  3. Select Override Auto-Detected Sampling Rate.
  4. Click Save. The change is applied for all monitored interfaces of the node.
  5. Click Submit.
 
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