Re: about usb3 <> ethernet adapters for raspberry pi 5

Maybe of interest:

1. same pi5 with ubuntu linux 26.04, the onboard eth0 interface:

- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-60.00  sec  6.53 GBytes   934 Mbits/sec  347            sender
[  5]   0.00-60.01  sec  6.53 GBytes   934 Mbits/sec                  receiver

2. same as [1] but with the usb3<>ethernet adapter as before.
    The system sees this as enx9c69d36abdfc

ubuntu@ubuntu:~$ iperf3 -c 192.168.1.230 --bind-dev enx9c69d36abdfc --time 60 --get-server-output

[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-60.00  sec  6.58 GBytes   942 Mbits/sec    0            sender
[  5]   0.00-60.00  sec  6.57 GBytes   941 Mbits/sec                  receiver

3. openbsd 7.9 on rpi4b/8GB, onboard interface (bse0)

[ ID] Interval           Transfer     Bitrate         Retr
[  4]   0.00-60.02  sec  5.73 GBytes   820 Mbits/sec    0            sender
[  4]   0.00-60.02  sec  5.73 GBytes   820 Mbits/sec                  receiver

4. same as [3]: had to disable bse0 because "system does not support bind to device"
    to make iperf3 use axen0

# ifconfig axen0
axen0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr 9c:69:d3:cc:dd:ee
        index 4 priority 0 llprio 3
        groups: egress
        media: Ethernet autoselect (1000baseT full-duplex)
        status: active
        inet 192.168.1.191 netmask 0xffffff00 broadcast 192.168.1.255

# iperf3 -c 192.168.1.230 --time 60 --get-server-output

Connecting to host 192.168.1.230, port 5201
[  4] local 192.168.1.191 port 31705 connected to 192.168.1.230 port 5201
[ ID] Interval           Transfer     Bitrate         Retr
[  4]   0.00-60.01  sec   663 MBytes  92.7 Mbits/sec    0            sender
[  4]   0.00-60.04  sec   663 MBytes  92.6 Mbits/sec                  receiver
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