From: Alexander Economou <alexecon@gmail.com>
To: linux-admin@vger.kernel.org
Subject: Re: Changing media type of network card
Date: Sat, 2 Jul 2005 03:08:21 +0300 [thread overview]
Message-ID: <304ee4c05070117082d1fd506@mail.gmail.com> (raw)
In-Reply-To: <20050626222852.GA21695@open-core.com.ar>
On 6/27/05, Emiliano Castagnari <ecastag@fi.uba.ar> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
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> El [ Sat 25, Jun 05 - 13:52 ] , Anindya Mozumdar expreso:
> > Hi,
> > I have a Intel EtherExpress/100 ethernet card. I would like to
> > change the media type to 10base2. However, any attempt of doing this
> > using ifconfig gives the error Operation Not Supported. Is there any
> > way I can change this ?
>
> Try mii-tool, to do so, you should first find out what capabilities this
> card supports. To do that, you could issue the command 'mii-tool <dev> -vv'.
>
> This is the output for one of my network cards:
>
> - -=|[@lambda - root]: /]#> mii-tool eth0 -vv
> Using SIOCGMIIPHY=0x8947
> eth0: negotiated 100baseTx-FD, link ok
> registers for MII PHY 1:
> 3100 786d 0000 8201 01e1 45e1 0001 0000
> 0000 0000 0000 0000 0000 0000 0000 0000
> 000c 0080 0000 0023 0c59 0406 0200 8560
> 8a7b 01f9 0000 0000 0000 0000 0000 0000
> product info: vendor 00:00:20, model 32 rev 1
> basic mode: autonegotiation enabled
> basic status: autonegotiation complete, link ok
> capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
> advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
> link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
>
> To change it, you could do something like this "mii-tool <dev> -F <media>", where
> media is one of the supported capabilities.
>
> Not every capability listed is always available. If this network card is attached to
> a switch port that is not in autonegotiation mode, then you'll have to change this,
> either to force it to the selected media type, or to be in autonegotiation mode.
>
> Cheers !!
> - --
> # Emiliano Castagnari
> [ -========================================================================- ]
> ('> # Debian Sarge - GNU/Linux - lambda 2.6.12-l01 #
> Gnu / (/) # JID: torian@lug.fi.uba.ar
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If mii-tool doesn't work for you , try ethtool
--
-------------------------
Alexander Economou
Systems & Network
Administrator
-------------------------
prev parent reply other threads:[~2005-07-02 0:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-25 8:22 Changing media type of network card Anindya Mozumdar
2005-06-26 22:28 ` Emiliano Castagnari
2005-07-02 0:08 ` Alexander Economou [this message]
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