4.4.5 Perform iPerf Tests

You can use iperf3 to evaluate the throughput of the Wi-Fi interface.

When you perform tests, please use PC as the peer device and connect it to the same network of the evaluation board. Download the iPerf tool from iPerf website.

Downlink test (packets send from the PC to Evaluation Board).
Type the following command on Evaluation board to start iPerf server:
```
iperf3 -s 
```
Type the following command on PC:
```
iper3 -c <IP_ADDRESS> -i 1
```
Figure 4-7. COM38 (Evaluation Board) and Command Prompt (PC) iPerf Log
Uplink Test (packets send from the Evaluation Board to the PC)
1. Type the following command on PC:
```
iper3 -s
```
Type the following command on Evaluation board to start iPerf server:
```
iper3 -c <IP_ADDRESS> -i 1 
```
Figure 4-8. COM38 (Evaluation Board) and Command Prompt (PC) Iperf Log