cannot set speed to 1000/FD
David Timms
dtimms at iinet.net.au
Tue Feb 26 10:11:49 UTC 2008
Steven C. Liu wrote:
> I recently replaced a FE 3Com card in my Linux server (hostname is
> imladris) with a Netgear GigE card. I am unable to set it to 1000FD, no
> matter what I do. I tried forcing it using 'ethtool -s', and setting
> autoneg off and on. Rebooting didn't help. Using a different port on
> my GigE switch/hub didn't help.
>
> BTW - I also put a duplicate Netgear GigE card into another Linux server
> (hostname is numenor; additional NIC, not a replacement -- if it
> matters). On numenor, that NIC is at 1000FD.
>
> I have not yet tried swapping the port and ethernet cable between
> imladris and numenor...
That would be a great first check - eliminate everything you can.
Are you using a cable with all 4 pairs correctly wired {for 1Gb},
whereas only two pair {for 100Mb} ?
Are you using a switch ? If not the crossover has to crossover 4-pairs
correctly !
Is it a reasonable distance ? proper cat 6 cable ?
DaveT.
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