From: Emiliano Castagnari <ecastag@fi.uba.ar>
To: Anindya Mozumdar <anindya.lugbang@gmail.com>
Cc: linux-admin@vger.kernel.org
Subject: Re: Changing media type of network card
Date: Sun, 26 Jun 2005 19:28:53 -0300 [thread overview]
Message-ID: <20050626222852.GA21695@open-core.com.ar> (raw)
In-Reply-To: <4e829fd30506250122534c1511@mail.gmail.com>
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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
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next prev parent reply other threads:[~2005-06-26 22:28 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 [this message]
2005-07-02 0:08 ` Alexander Economou
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