Please apply this mandatory patch to all NFA 21.2.8 instances. This will provide a fix for a data integrity issue which was introduced for NFA 21.2.8.
As you can see prior to the upgrade to 21.2.8, data is collecting fine. After the upgrade the data collected appears much lower. This won't occur on all interfaces. There are specific scenarios for this to occur.
We found an issue where OUT data reports very low data after upgrade / PTF 1 patch:
Release : 21.2.8
Component : NQRPTA - REPORTERANALYZER
1. Download the NFA_21.2.8_PTF_002.zip file and copy it to each harvester.
2. Extract the contents.
3. Follow the included readme.txt carefully to apply the patch.