redhad Enterplset 6.0 (Device eth0 does not seem to be present, ...

Issue the following two commands for me

ip a
lsmod | grep eth

110329-ip-a-command.JPG

Did a simple slmod and saw nothing that contained eth

Both nics are enable in the bios.

It seems to me that the Broadcom Gigabit NIC driver is not installed correctly (or not installed).

Try to down the driver and install it.

Hello,

is it a fresh install of RHEL 6? If yes than you are missing the drivers? You can download them under http://www.broadcom.com/support/ethernet_nic/netxtremeii.php

This was working but not well.  We were able to get the card up but it was not communicating well. We had problems with the SAN loosing connectivity with the FC card. This morning we replaced the FC card. all the sfps  removed an four port nic that we no longer needed replaced the fiber patch cords.   When we brought the server back up we could no longer see the two Broadcom on board NICs

Backup ifcfg-eth0 and ifcfg-eth1 in /etc/sysconfig/network-scripts/
and remove them from that directory.
Then re-install broadcom driver again.

Need some instructions in reinstalling the drivers.

Download drivers by giving the above commands and once you have the driver RPMs, issue the following command

rpm -ivh <driver>.rpm

do I burn them to a CD ore use a USB drive?

As you like.  USB would work too

1. Download the zip file from broadcom website.

2. Use USB flash key drive transfer to Linux box

3. unzip it
and read the README file.
There is an instruction for installation.

4. Make sure you have gcc install since installation use
make
make install
(the drive file should be Server/Linux/Driver/netxtreme2-6.2.23.tar.gz)
tar zxf netxtreme2-6.2.23.tar.gz

Wait up.

One last thing before you do the whole drill.

Please issue the following command:

grep alias /etc/modprobe.conf   (you may not have this file in RHEL6)

Then issue this

grep alias /etc/modpro*/*

Show me the output and then you can continue with the drivers.

110329-modprobe-I.JPG
110329-modprobe-II.JPG
110329-modprobe-III.JPG

What are we looking for?

Turned out to be a problem with the mother board on the server.