Re: how to force the NIC to 1000M full duplex

Le Friday 08 June 2007 15:43:41 chloe K, vous avez écrit :
Hi Gilles

Thank you
I install ethtool but it still has problem to force the card.
How can I put it in the boot up? /etc/network/interface

Simply by putting this line in your interface section :
iface eth7 inet ...
...
up ethtool -s eth7 speed 1000 duplex full

Thank you

~# ethtool -s eth7 speed 1000 duplex full autoneg off

After that, what do you see in "dmesg" messages ? And "ethtool eth7"

~# ethtool -a eth7
Pause parameters for eth7:
Autonegotiate: on
RX: on
TX: on

Same question.

Have you made some tests, are you sure that your network card is not
configured at 1Gb/s (don't trust mii-tool)


Gilles Mocellin <gilles.mocellin@xxxxxxx> wrote: Le Thursday 07 June 2007
19:42:12 chloe K, vous avez écrit :
Hi all

How do I force the NIC to 1000M full duplex

it seems that it can't do it in mii-tool?

/etc/network# mii-tool -F 1000baseTx-FD eth7
Invalid media specification '1000baseTx-FD'.

I think that gigabit cards are always full duplex.
But mii-tool has some problems with some drivers (tg3).

Use ethtool as suggested by Juergen Fiedler.

You can also look at the parameters you can give to your driver.
# modinfo yourmodule



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