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raj · #1 (**permalink**) 06-12-2007, 04:54 PM

Changing your Network Interface Speed, Duplex or Auto Negotiate settings on Suse Enterprise Linux server.

1 # Login as root user

2 # Change directory to /etc/sysconfig/network/scripts

Code:

cd /etc/sysconfig/network/scripts

3 # Create a file called eth0-setup

Code:

vi eth0-setup

4 # Set eth0 to 100 duplex full, add following config line:

Code:

#!/bin/sh
/usr/sbin/ethtool -s eth0 speed 100 duplex full autoneg off

5 # Softlink /etc/sysconfig/network/scripts/eth0-setup to /etc/sysconfig/network/if-up.d

Code:

ln -s /etc/sysconfig/network/scripts/eth0-setup /etc/sysconfig/network/if-up.d

6 # More information - read man page

Code:

man ethtool

Also chk out : Linux add ethtool duplex settings to a network card permanently | nixCraft

jan · #2 (**permalink**) 03-20-2008, 04:33 PM

Hello,

I want to configure my network-card to run in full-duplex mode. The description above from raj seems to work for me but I want to understand my settings (SUSE Linux Enterprise Server 10):

contents of /etc/sysconfig/network/ifcfg-eth-id-00:14:5e:cc:40:ee

Code:

BOOTPROTO='none'
ETHTOOL_OPTIONS='speed=100 duplex=full autoneg=off'
NAME='IBM NetXtreme II BCM5708 Gigabit Ethernet'
STARTMODE='off'
UNIQUE='rBUF.2uuZ5oJ5QB6'
USERCONTROL='no'
_nm_name='bus-pci-0000:03:00.0'

Here you see the ETHTOOL_OPTIONS-variable. But I can't figure out when the ethtool was called with these options.

A grep over my etc-directory (grep -ri ethtool .) shows me only the entries in ifcfg*-files.

And here another confusing message (from /var/log/boot.msg):

Code:

    eth0      device: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 11)
    eth0      configuration: eth-id-00:14:5e:cc:40:ee
    eth0      Startmode is 'off'
skipped    eth1      device: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 11)
    eth1      configuration: eth-id-00:14:5e:cc:40:f0
    eth1      Startmode is 'off'
skipped    bond0
"ethtool bond0 speed=100 duplex=full autoneg=off" failed.
    bond0     enslaving interfaces:  eth0 eth1
    bond0     IP address: 10.40.0.16/22   as bonding master
doneSetting up service network  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .done

It seems that the ethtool can't be executed successfully.

Who can help me?

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Suse Enterprise Linux server Set Network card (NIC) to Full duplex setting

Suse Enterprise Linux server Set Network card (NIC) to Full duplex setting

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