Subject: Re: how to view interface's media options?
To: Jeremy C. Reed <reed@reedmedia.net>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: netbsd-help
Date: 03/06/2002 23:39:09
On Wed, Mar 06, 2002 at 02:19:04PM -0800, Jeremy C. Reed wrote:
> How can I detect my ne device media options?
> 
> I see from the following that it is probably configured via card jumpers
> (or maybe some vendor software).
> 
> $ ifconfig -m ne0
> ne0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         address: 00:40:05:6e:04:2a
>         media: Ethernet manual
>         supported Ethernet media:
>                 media manual
>         inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
>         inet6 fe80::240:5ff:fe6e:42a%ne0 prefixlen 64 scopeid 0x1

At last the driver doesn't know how to detect/change the media

> 
> 
> I'm trying to figure out if this ne0 is configured as half- or
> full-duplex. I assume it is full-duplex, because when sending to other
> systems with half-duplex (no switch) it is two to three times slower than
> when receiving. (Sometimes it justs stalls.)
> 
> (Also, it seems like "netstat -i" always shows zero collisions but my
> other systems show collisions on same network.)

So it's probably full duplex then.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
--