What are the Recommended alerts which can be configured for Net flow..Kindly suggest
An alert for streaming traffic could be created with some of the information here.
Identify video streaming traffic using NTA - SolarWinds Worldwide, LLC. Help and Support
User uploading large files might be interesting (data exfiltration?).
Lack of recent NetFlow data would be helpful. https://thwack.solarwinds.com/docs/DOC-167297
Check out my answer for this recent thread. https://thwack.solarwinds.com/thread/112739#367893
There is really only 1 alert for Netflow.