Re: cannot set speed to 1000/FD

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David Timms wrote:
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.


Thanks to Mr. Timms and one other gentleman for responding...

My problem was indeed due to using a very old cable. I don't have any cat 6 cables, but I found that cat 5e cables work well enough for me. In due time, I will likely eliminate my older cables and replace them with cat 6. But, that is a project for a different day.

Steve


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