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

[sergiu@xxxxxx]

Here are more details related to this topic...

I had the same problem on Dell PowerEdge 1950 Servers with two integrated
Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet NICs.

The "solution" was to deactivate the IPMI management feature.

To deactivate IPMI on first NIC use this: uxdiag -c 1 -mfw 0 -t abcd
To deactivate IPMI on second NIC use this: uxdiag -c 2 -mfw 0 -t abcd

Note that '-t abcd' is not related to IPMI but it will skip those
long-and-boring tests of uxdiag.

A good idea is to deactivate IPMI only for the interface used by Xen and
to keep IPMI activated on the management interface. A better idea is to
have a look at uxdiag -help :)

I've made a nice MS-DOS 6.22 *bootable* ISO with DOS-based utilities for
the Broadcom NetXtreme II (\Broadcom\Userdiag\uxdiag.exe)

Of course I have to mention those blablabla things like: "use it at your
own risk"...

http://xen.ro/dellpe1950.iso

OR

Read this
http://mywiki.ncsa.uiuc.edu/wiki/Dell_PE1950_NIC_Firmware_Workaround

Xen community rulz!

> 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
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>


-- 
Sergiu Strat,
HQN - High Quality Networks
www.hqn.ro


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