Lots of collisions on em0

[Dan Nelson]

In the last episode (Aug 18), Jeffrey Katcher said:
> My network performance is a little spotty under -current lately so I
> looked at netstat -i:
> 
> netstat -i
> Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
> em0       0 <Link#1>      00:0d:60:2d:b0:c2        0  5722        0     0 5803493
> em0       0 192.168.168   clio                  6445     -     5680     -     -
> lo0*      0 <Link#2>                               0     0        0     0     0
> lo0*      0 your-net      localhost                0     -        0     -     -
> 
> With only a short uptime, I'm seeing insane numbers of collisions on
> em0, which is connected via a known-good cable to a known-good switch
> which shows no collisions on any of its ports.  Is there something
> going on with the em driver?

Sounds like your netstat binary is out of sync with your kernel.  Ipkts
and Opkts for your two em0 lines should be almost the same, and you
can't have collisions with no Opkts.

-- 
	Dan Nelson
	dnelson at allantgroup.com