Properties of nic

[Triple-X]

Hi
I have a query, how can we check if a network card is full duplex? Where we will not be full duplex, how can we enter this mode? This will be for a server with as RedHat Enterprise Server 5.1 64 bit. Any help on this. Please I am stuck to this point. Thanks in advance.

[Spyrus]

Hi,
Try this command

dmesg | grep-i duplex

Tells you what mode you are.
Using this you can test it with mii-tools:

mii-tool-F-FD 100baseTx

100baseTx-HD = 100Mbits Full Duplex (to modulate 10.100 FD, HD ...).
I believe that

ethtool eth0

give you the features supported by your card.
Any more help do post back.

[Triple-X]

Hi
Here are the results I got with the command ethtool.
I failed to mention that I had 2 network cards.

[root @ localhost ~] # ethtool eth0
Settings for eth0:
        Supported ports: [MII]
        Supported link modes: 10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb / s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x000000ff (255)
        Link detected: yes

I want to know how to spend those cards in full duplex? Any advice on this.

[Spyrus]

Hi
In / etc / modprobe.conf:

exaple_eth0 auto_speed options line_speed = 0,0,0 = 1,1,1 = 1000,100,10 full_duplex
example_eth1 auto_speed options line_speed = 0,0,0 = 1,1,1 = 1000,100,10 full_duplex

See the result of this, from the above mentioned file.

[Triple-X]

Hello,
I want to know is what to reboot after changing / etc / modprobe.conf is or what is content just to restart a service? If you can restart a service which is the command to be performed to reflect the changes? Here are the contents of / etc / modprobe.conf I have now.

alias eth0 tg3
alias eth1 tg3
aka scsi_hostadapter mptbase
aka scsi_hostadapter1 MPTSAS

How do I fit in relation to existing content in this file? Or is it simply must add the code you told me?

[Spyrus]

Hi,
you add lines of previous post at the end of your modprobe.conf and you restart the service

/ etc / init.d / modprobe restart

Make a backup of your file before anyway .