> On 7 Sep 2023, at 08:00, Steven Shockley <steve.shock...@shockley.net> wrote:
>
> When running netstat -I [interface], what do the "fails" and "errs" columns
> mean? When my firewall is under network load, the output interface fails and
> total errs increases.
fails are the sum of qdrops and errs. qdrops are when the network stack drops
packets getting packets on or off the driver, and errs are problems the driver
has with packets. netstat -eI foo0 shows the errors on their own, netstat -dI
foo0 shows the drops on their own.
if it's qdrops then it's a software performance/configuration problem. if it's
errs then it's something in the driver reporting errors. if the driver provides
kstats then you might be able to figure out if it's a dodgy cable or something
like that.
dlg
