On Thu, 10 Sep 2020 23:17:59 +0300 Oded Gabbay wrote: > > Doesn't seem like this one shows any more information than can be > > queried with ethtool, right? > correct, it just displays it in a format that is much more readable
You can cat /sys/class/net/$ifc/carrier if you want 0/1. > > > nic_mac_loopback > > > is to set a port to loopback mode and out of it. It's not really > > > configuration but rather a mode change. > > > > What is this loopback for? Testing? > > Correct. Loopback test is commonly implemented via ethtool -t
