Network Management

No flow data seen for light traffic interfaces due to Top Talker Optimization setting

The details page of a device shows "Data is not available" for all resources even when the time stamp for Last Received NetFlow is current for the interface (or node).

First published date

10/25/2018 1:06 PM

Last published date

11/26/2021 2:15 PM

Overview

The details page of a device shows "Data is not available" for all resources even when the time stamp for Last Received NetFlow is current for the interface (or node).

Product section

Netflow Traffic Analyzer

Cause

By default, the NTA Top Talker Optimization setting is 95%. This setting captures the top consumers of bandwidth. With the default setting, about half of all flow data may be dropped as not important.

Resolution

Open the NTA Console > Settings > NTA Settings > Top Talker Optimization.
Change the setting to 100%.
Click Save.
Note: This setting stores all flow data.

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