Paul Menzel

The partner wrote, they use a self-built iperf 3.17.1 from the [package sources of Ubuntu 24.10 (oracular)](https://packages.ubuntu.com/oracular/iperf3): iperf 3.17.1 (cJSON 1.7.15) Linux sl-net-p-iperf 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06)...

> Issue link：https://github.com/sonic-net/sonic-linux-kernel/issues/412 Please use: > Closes: https://github.com/sonic-net/sonic-linux-kernel/issues/412

Could you please add the description to the commit message (`git commit --amend && git push -f`).

Are these port scanners?

> Can you run the server using `-V -d` options (verbose+debug) and send the output? Sure. I’ll report back. > Also, what is the client version you are using for...

Here is an example with verbose and debug log: $ iperf3 --server --port 5201 --bind iperf3.molgen.mpg.de --timestamps -V -d Thu May 15 09:26:58 2025 iperf 3.18 Thu May 15 09:26:58...

I needed to correct my report. I found logs from 3.15, and the errors show up there already. Sorry about the incorrect report.

> I did some tests, and that these errors happens when an application tries to connect and send data to TCP port 5201 on the server side. I assume that...

Yes, I am going to start tcpdump. I wonder if in debug logging mode, the IP address and invalid data should be logged or dumped.

> > I wonder if in debug logging mode, the IP address and invalid data should be logged or dumped. > > No such data is logged by iperf3 in...