Hello @Maoz M
Welcome to Microsoft Q&A Platform,
NTTTCP is not a pure data integrity testing tool, but a network throughput benchmark tool:
https://github.com/microsoft/ntttcp
To check packet drops/data sent you will have to capture and analyze network traces using the tool of your choice, when generating traffic via NTTTCP.
I hope this helps!
----------
Please don’t forget to "Accept the answer" and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.