Diagnose packet loss and throughput with iperf3 (quick guide)
TL;DR: Run the server on one end (iperf3 -s), the client on the other (iperf3 -c host). Test both directions, try single stream then a few parallel streams, and use UDP to quantify loss/jitter. When to use iperf3 Throughput is low and you don’t know if it’s the app, the host, or the network. You … Read more