Some devices randomly losing their IPv4 address

[Kenneth Porter]

--On Wednesday, April 06, 2022 6:10 PM -0700 Julien Pierre 
<goldberg.variations at gmail.com> wrote:

> I don't know if the Raspberry Pi 4B will be fast enough - I
> would like it to handle at least gigabit download speed. I have a pair of
> Realtek USB 2.5Gbase-T NICs, but my experience with them hasn't been good
> - they can't do full-duplex 2.5 Gbps in iperf even on a full-fledged
> powerful PC because they are limited by USB 3.0.

The CM4 might be better, since you get raw PCIe instead of USB3.

<https://forums.raspberrypi.com/viewtopic.php?t=314969>

<https://www.seeedstudio.com/blog/2020/11/03/what-can-you-do-with-the-pcie-x-1-on-raspberry-pi-cm4-io-board-m/>

I hadn't realized there's an I/O HAT with a PCIe connector, listed at $35. 
So you could mount a standard single-lane PCIe PC card (like a dual Gigabit 
Ethernet card) to a CM4.

<https://www.seeedstudio.com/Raspberry-Pi-CM4IO-Board-p-4716.html>