Setting NIC Link Speed and Duplex
 

How does one do this in Linux? Specifically Mandrake 9.2

You probably need to su - first
Then run the command:
/sbin/ethtool -s eth0 speed 10 duplex full autoneg off

Use the command: /sbin/mii-tool to verify the new settings.

Note: use speed 100 or duplex half if needed

This was very usefull for me too... ive been looking for this for some time :)
thx

Im using FC 1:
Do i have to set this in /etc/rc.d/rc.local so it sets on every boot?

B52

HELP
 

on one of two machines mii-tool dies....
both IDENTICAL... is it because of the overlay interface eth0:1???
What is the cure? Why the "operation not supported"?

Functional on this host:

eth0 Link encap:Ethernet HWaddr 00:0B:CD:9C:24:01
inet addr:10.16.6.225 Bcast:10.16.7.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18470039 errors:0 dropped:0 overruns:0 frame:0
TX packets:4075771 errors:1 dropped:0 overruns:0 carrier:0
collisions:3411
RX bytes:4294967295 (4095.9 Mb) TX bytes:768081824 (732.4 Mb)

[root@thebes root]# mii-tool
eth0: 100 Mbit, full duplex, link ok
eth1: no link
[root@thebes root]# uname -a
Linux thebes 2.4.9-e.3smp #1 SMP Fri May 3 16:48:54 EDT 2002 i686 unknown


Broken on this host:
[root@sparta root]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:0B:CD:9C:61:A9
inet addr:10.16.6.216 Bcast:10.16.7.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:26474947 errors:0 dropped:0 overruns:0 frame:0
TX packets:10323727 errors:36 dropped:0 overruns:0 carrier:0
collisions:39581 txqueuelen:100
RX bytes:2555382578 (2437.0 Mb) TX bytes:596897691 (569.2 Mb)
Interrupt:11 Memory:f7ef0000-f7f00000

eth0:1 Link encap:Ethernet HWaddr 00:0B:CD:9C:61:A9
inet addr:10.16.6.226 Bcast:10.16.7.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:11 Memory:f7ef0000-f7f00000


[root@sparta root]# mii-tool
SIOCGMIIPHY on 'eth0' failed: Operation not supported
SIOCGMIIPHY on 'eth1' failed: Operation not supported
no MII interfaces found
[root@sparta root]# uname -a
Linux sparta 2.4.9-e.3smp #1 SMP Fri May 3 16:48:54 EDT 2002 i686 unknown