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Re: Problems with IPMI and wm? sharing a physical Ethernet port

On Tue, Jun 26, 2012 at 12:25:15PM -0400, Thor Lancelot Simon wrote:
> On Tue, Jun 26, 2012 at 06:20:22PM +0200, Manuel Bouyer wrote:
> > 
> > I've got a similar experience from supermicro. On a serie of servers
> > I got, I coudln't get serial over ipmi to work. I tried to talk to them
> > (and the reseller did too), but I couldn't convince them that a working
> > serial port is important (their reply invariably was "use the GUI, it's
> > better").
> > 
> > Recently I got amd opteron buldozer servers from them (A H8QG6 motherboard),
> > and on this one the IPMI serial is working. So maybe some cares about
> > this feature at supermicro anyway ...
> It's the "9" series of Intel servers that have the broken IPMI serial.
> The "8" ones are supposedly OK.

OK. I should get one 9 serie soon, I'll test this again.

> Evidently the problem is that the whole BMC/IPMI stack, as well as the
> BMC dedicated ethernet and the physical VGA, are implemented by that one
> chip on the motherboard, and either *it* doesn't implement the register
> level serial interface, or the ATEN firmware for it that SuperMicro uses
> does not implement that interface.  Couldn't get them to tell me which,
> of course.
> One way to tell that you might be dealing with this chip is if the
> system manual shows no way to choose _which_ Ethernet is dedicated to
> IPMI.  Are your Bulldozer systems the ones that have several Ethernets
> any of which _can_ be effectively dedicated to IPMI, but none of which
> is necessarily so?

Yes (if I understood you properly). IPMI can share one of the gigabit
interface, but there is also a dedicated 10/100 port (I use this one,
of course).

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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