[CentOS] Failing Network card

Wed Jun 20 15:44:57 UTC 2012
Gregory P. Ennis <PoMec at PoMec.Net>

Gregory P. Ennis wrote:
> <snip>
>>> Some additional information that may be useful.  The TrendNet card is
>>> the second TrendNet card I have used.  The first card had the same
>>> symptoms, and I deduced the card was bad, and purchased another one.
>>> The symptoms are the same with the second card.
>> <snip>
> Ah, but you should in your logs, or - if you're running 6.2 - possibly in
> /etc/udev/rules.d/70-persistant-net.rules.
>
>> too. Both the first and second cards did not appear to have any damage
>> on the boxes or the card itself.  Before I tried to get a third card
> <snip>
>
> In that case, sounds like the OEM had a q/c problem.
>
> That's interesting.  Here are the log entries for the previous card as
> well as the eth4 that is currently installed.
>
> # PCI device 0x10ec:0x8168 (r8169)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="00:e0:b3:10:f6:81", ATTR{type}=="1", KERNEL=="eth*",
> NAME="eth3"
>
> # PCI device 0x10ec:0x8168 (r8169)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="00:e0:b3:10:fc:6e", ATTR{type}=="1", KERNEL=="eth*",
> NAME="eth4"
>
> Looks like addresses are close.

So-so; not *that* close. I have some servers with two on-board NIC's whose
MAC addresses end in things like fe:ab, fe:ac, fe;36, fe:37. Still....

Actually, I missed the beginning of this thread. Are there no on-board
NICs? I've not seen a m/b in a long time without that; even Rasberry Pi
has one.

        mark

Mark,

There is an on board nic with the m/b.  Here is the mac entry of it.

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="38:60:77:ed:41:a0", ATTR{type}=="1", KERNEL=="eth*",
NAME="eth0"

Both nic's apparently have the same chipset :

"lspci | grep net" outputs :
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev ff)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)

Greg