Speed Duplex - From Half Duplex to Full Duplex

leonshen

Hi All,

    I would like ask is any way change the NIC speed from half Duplex to Full Duplex on RH4.0.  I have done the following:

add the following to modules.conf:

alias eth0 e1000
alias eth1 e1000
options e1000 Speed=100,100 Duplex=2,2

After reboot the Server,

vi "/etc/modprobe.conf"
alias scsi_hostadapter mptbase
alias scsi_hostadapter1 mptscsih
alias usb-controller ehci-hcd
alias usb-controller1 uhci-hcd
alias scsi_hostadapter2 megaraid_mm
alias scsi_hostadapter3 megaraid_mbox
alias eth0 e1000
alias eth1 e1000
options e1000 Speed=100,100 Duplex=2,2


[root@RHAPS1 ~]# shutdown -r now
Broadcast message from root (pts/0) (Fri Jan  6 11:48:15 2006):
The system is going down for reboot NOW!
.
.
.
[root@RHAPS1 ~]# ethtool eth0
Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Half
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: umbg
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes

Urgent need help.

ippen

write two line in /etc/rc.local

/usr/sbin/ethtool -s eth1 speed 100 duplex full autoneg off
/usr/sbin/ethtool -s eth2 speed 100 duplex full autoneg off

leonshen

Hi Ippen.

   Instead the every time type command, is any way permanent set the aut neg off ?  Thanks for that.


Leon

ippen

no need type command erery time,you can write command in file /etc/rc.local
so when you reboot server, netword card is setting to speed 100 and duplex full