Subject: Input errors on interface
To: None <current-users@netbsd.org>
From: Rick Byers <rickb@iaw.on.ca>
List: current-users
Date: 10/21/1999 12:00:02
Hi,
What exactly can cause the "Ierrs" on a network interface?  It was my
original understanding that they should basically never happen (aside from
hardware failure).  I'm currently seeing a lot of them on one of my
interfaces (connected to a cable modem) - can bad packets (framing errors
etc..) cause Ierrs, or is it more likely hardware?  The reason I ask is
that the throughput seems a little slow lately, and if replacing the card
would fix the problem - I would.  BTW, its an ISA NE2100 clone (Racal) in
my NetBSD-1.4.1/i386 (Pentium/90).  Could it be a bounce-buffer
issue?  The card uses DMA and I've got 24 Mb of RAM.
Here is the relevant netstat output:

Name  Mtu   Network         Ipkts Ierrs    Opkts Oerrs Colls
le0   1500  <Link>        1457128 42156   295521     1  2447
le0   1500  24.112.104/23 1457128 42156   295521     1  2447
ep0   1500  <Link>         259207     0   268774     4  0
ep0   1500  192.168.149    259207     0   268774     4  0
lo0   32976 <Link>           5441     0     5441     0  0
lo0   32976 loopback         5441     0     5441     0  0

Thanks!
	Rick