Intel Gigabit works at 100Mb only

I've run into this problem twice now and I am at a loss.

Any help is appreciated.

I have a couple of machines that have Gigabit cards but won't connect to my
Gigabit hub.
I don't think the problem is the hub, since I have working machines on it,
and I've swapped around the ports.

I've taken a fresh install of Redhat, and applied all the kernel updates. If
I plug the network cable into a 100Mb hub it works fine, if I plug it into
the 1000Mb hub I just get a collision light.

I'm using a 1000Mb Dell 2048 Powerconnect switch.

I've also tried installing another Intel Gigabit card into the machine and
it does the same thing.

My /etc/modules.conf has:
alias eth0 e1000

/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
BROADCAST=192.168.1.255
IPADDR=192.168.1.181
NETMASK=255.255.255.0
NETWORK=192.168.1.0
GATEWAY=192.168.1.1
ONBOOT=yes
TYPE=ethernet
USERCTL=no
PEERDNS=no

What could be wrong? Any suggestions?

This all worked fine on another machine I setup with identical hardware.

Thanks,

Nihal

Well shoot. I just got done trying other cables.
I have three cables that only work at 100Mb.
And I finally found another that works at 1000Mb


I feel dumb.

Thanks.

"Nihal" <(E-Mail Removed)> wrote in message
news:bvrtot$980$(E-Mail Removed)...
> I've run into this problem twice now and I am at a loss.
>
> Any help is appreciated.
>
> I have a couple of machines that have Gigabit cards but won't connect to
my
> Gigabit hub.
> I don't think the problem is the hub, since I have working machines on it,
> and I've swapped around the ports.
>
> I've taken a fresh install of Redhat, and applied all the kernel updates.
If
> I plug the network cable into a 100Mb hub it works fine, if I plug it into
> the 1000Mb hub I just get a collision light.
>
> I'm using a 1000Mb Dell 2048 Powerconnect switch.
>
> I've also tried installing another Intel Gigabit card into the machine and
> it does the same thing.
>
> My /etc/modules.conf has:
> alias eth0 e1000
>
> /etc/sysconfig/network-scripts/ifcfg-eth0
> DEVICE=eth0
> BOOTPROTO=none
> BROADCAST=192.168.1.255
> IPADDR=192.168.1.181
> NETMASK=255.255.255.0
> NETWORK=192.168.1.0
> GATEWAY=192.168.1.1
> ONBOOT=yes
> TYPE=ethernet
> USERCTL=no
> PEERDNS=no
>
> What could be wrong? Any suggestions?
>
> This all worked fine on another machine I setup with identical hardware.
>
> Thanks,
>
> Nihal
>
>
>
>