BFI rate

[nandongnan]

Thank you for your work! I am able to capture BFI correctly in MU-MIMO, but according to the analysis in wireshark, I can receive up to 6~8 BFI frames per second from the same STA device. Then I analyzed the pcap file you provided, the BFI rate can reach one hundred per second, how should I increase the BFI rate? Actually I used the following iperf command, but it didn't actually work:
iperf3 -s -i 1 -p 5201/5202 (AP)
iperf3 -c server address -B client address -i 1 -R -p 5201/5202(STA1/STA2)