Comment 1 for bug 1760631

Spent some time today suspecting my network... and replacing switches to see if it's that. It doesn't seem to be.

It's not losing data - but is dropping incoming packets.
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
  ...
        RX packets 27620129 bytes 626133333 (597.1 MiB)
        RX errors 0 dropped 121 overruns 0 frame 0
        TX packets 10392537 bytes 1665351159 (1.5 GiB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
  ...

The machine is getting in files from another RPi with a camera - and making mp4s before shipping them elsewhere. So it's reasonably network intensive with large files coming and going.

I've added -K to the dhcpcd process which ignores carrier transitions and at least stops it taking down the interface and putting it back up again.