We have checked and it seems to be an issue in hardware design. If you feel like it is something wrong in software, please try to reproduce it on Xavier developer kit, and share us the steps. We will follow the steps to replicate it and do investigation.
We can’t reproduce the issue on Xavier’s carrier board, because it is MAC-PHY connection.
We have MAC-MAC connection as：
The PC to TDA4VM connection that test with the same method is OK.
the steps are:
sudo ifconfig eth0 192.168.10.101
on PC: (ip is 192.168.10.222)
iperf3 -c 192.168.10.101 -u -b 1000M -f M -l 32k -t 600
Is there any update about this issue?