Re: How to setup 100Mb/sec full duplex networking on Ultra-80?
On Sat, 28 Jul 2001, Robert L. Harris wrote:
> I have to deal with this also. You need to put some options in /etc/system:
>
> * Begin Ethernet stuff
> * This is to force the hmes into full-duplex
> set hme:hme_adv_autoneg_cap=0
> set hme:hme_adv_100T4_cap=0
> set hme:hme_adv_100fdx_cap=1
> set hme:hme_adv_100hdx_cap=0
> set hme:hme_adv_10fdx_cap=0
> set hme:hme_adv_10hdx_cap=0
> *
>
> That forces 100 full duplex.
Okay, this I already put this on my _Solaris_ boxes, and it works perfectly.
But how I can get the same effect for Debian SPARC _Linux_?
Regards. Guenter
>
>
> Thus spake Guenter Millahn (Guenter.Millahn@Informatik.TU-Cottbus.DE):
>
> > Hello community,
> >
> > I have an Sun SPARC Ultra-80 running Debian/woody together with an older
> > switch (LattisSwitch 28115 by Bay Networks).
> > The Workstation has a standard hme (happy meal) network card.
> >
> > Something with the autonegotiation doesn't work, probably because of the
> > age of the switch. I have configured 100 Mb/sec full-duplex on the
> > switch, but the Debian box falls back to 100 Mb/sec half-duplex. Another
> > effect on this box: After a reboot of the switch the connection is down
> > until I remove the plug from the switch and plug in it again.
> >
> > This behaviour doesn't occur on Solaris boxes where I forced 100 Mb/s fdx
> > (without the additional kernel configuration parameters the Solaris boxes
> > show the same behaviour).
> >
> > I tried the ethtool command from the sparc-utils package to show and change
> > the eth0 parameters:
> >
> > woodybox:~# /usr/sbin/ethtool eth0
> > Cannot get current device settings: Invalid argument
> > woodybox:~# /usr/sbin/ethtool -s eth0 speed 100 duplex full port tp autoneg off
> > Cannot get current device settings: Invalid argument
> > woodybox:~# tail -2 /var/log/messages
> > Jul 29 02:09:10 magpie kernel: eth0: Link is up using internal transceiver at 100Mb/s, Half Duplex.
> > Jul 29 02:09:37 magpie kernel: sys32_ioctl(ethtool:5483): Unknown cmd fd(3) cmd(000089ff) arg(effffc60)
> > woodybox:~#
> >
> > What did I wrong? Is there a discrepancy between the manual and the tool?
> > Or is the ethtool utility still buggy? (I hope not).
> >
> > Thank you in advance,
> > Guenter
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