iperf tool for nRF52840

[saima]

We want to use the iperf3 tool to measure packet loss while sending packets between two nRF52840 DKs. But we can't seem to find any instructions. We are using a variant of the att_mtu throughput example. Does the nRF52840 DK have support for iperf? What bluetooth protocol is used by nRF52840 DK?

Best regards

[saima]

Yes, we are already using the throughput example for getting throughput values, which is working fine. But we would also like to get the packet loss rate between the devices along with that. Is there a way to do that without DTM?

[ovrebekk]

Hi 

I don't think there is any easy way to do that without DTM, no. 

In theory it is possible to estimate packet loss based on how much data you get through on every Bluetooth connection event, since any lost packet will immediately end the connection event, but since the link layer handles all of this for you you don't have a lot of visibility into what is going on. 

If you want an accurate measurement of packet loss I believe DTM is the best option. 

Best regards
Torbjørn