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Re: [Xen-users] Possible Broadcom-related problem?

To: James Fidell <james@xxxxxxxxxxxx>
Subject: Re: [Xen-users] Possible Broadcom-related problem?
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Wed, 21 Feb 2007 19:56:14 +0200
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On Wed, Feb 21, 2007 at 05:18:51PM +0000, James Fidell wrote:
> I'm configuring Xen on a blade in an Intel SBCE.  Currently I'm using
> Fedora Core 6 with all patches installed and the Xen 3.0.3 RPMs that are
> part of that distribution, in the default configuration.
> When xend is started it appears that the network bridging breaks
> something such that although I can see ARP traffic (possibly all
> broadcast traffic?) arriving, no ICMP/TCP/UDP packets appear to
> reach the machine.  Running
>   /etc/xen/scripts/network-bridge stop
> returns things to normal.
> Reading around it looks like some people have ascribed this problem to
> a problem with the Broadcom NICs used on the blades, but I've upgraded
> the firmware to 1.9.6 (the latest I can find) with no obvious change in
> behaviour.
> I have a very similar configuration (FC6/same kernel/same xen RPMs/same
> default configuration) running ok on a different box, so I don't believe
> I've got anything too seriously wrong software-wise.
> Any ideas on why might be wrong and/or how to fix it?  Obviously I could
> change to a routed network connection, but I'd very much prefer the
> bridged option if at all possible.
> James

I fixed this problem with IBM HS20 blades by upgrading the broadcom NIC
firmware. You can check IBM support site for version information..

-- Pasi

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