Fiber GigaByte with Linux

I want to connect a Linux server to a CISCO switch with fiber gibabyte.
The Server has a Intel Corp. 82544EI Gigabit EthernetController, and the
CISCO is a CISCO 3525-XL.

When I plug the wires, I see the led blinking but I can't manage to make
the linux box see the other PCs connected to the FastEthernet ports.
I can't even see no packages if I do a tcpdump. Only ARP who-has .. tell.

I also tried to configure the server interface as a vlan with the linux
vlan howto, with the same results.

Any hints ?

Francesc Guasch <(E-Mail Removed)> wrote:
> I want to connect a Linux server to a CISCO switch with fiber gibabyte.
> The Server has a Intel Corp. 82544EI Gigabit EthernetController, and the
> CISCO is a CISCO 3525-XL.
>
> When I plug the wires, I see the led blinking but I can't manage to make
> the linux box see the other PCs connected to the FastEthernet ports.
> I can't even see no packages if I do a tcpdump. Only ARP who-has .. tell.
>
> I also tried to configure the server interface as a vlan with the linux
> vlan howto, with the same results.
>
> Any hints ?

Check your autonegotiate settings. You probably want to make sure that both
ends are set to autoneg, or at least hardcoded to the exact same settings.
GigE is much pickier about autoneg settings matching, in my experience.

--
Frank Sweetser fs at wpi.edu
WPI Network Engineer
GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC

Frank Sweetser <(E-Mail Removed)> wrote in message
> Check your autonegotiate settings. You probably want to make sure that both

In the end I was so silly I didn't plug the right card. Amazingly, packets
weren't leaving through the interface. I think the drivers saw no activity
and moved the packets to the loop interface.

That really puzzled me.