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Re: [Xen-users] Bridged networking not working as expected

To: "Rustedt, Florian" <Florian.Rustedt@xxxxxxxxxxx>
Subject: Re: [Xen-users] Bridged networking not working as expected
From: "Todd Deshane" <deshantm@xxxxxxxxx>
Date: Wed, 12 Nov 2008 07:13:31 -0500
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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On Wed, Nov 12, 2008 at 5:38 AM, Rustedt, Florian
<Florian.Rustedt@xxxxxxxxxxx> wrote:
> Hello list,
> I am trying to connect 16 machines. I changed the loopback-values to
> 255.
> If i now start all machines and try networking, about the half couldn't
> connect the internet but get an IP and can ping the dom0. So i decided
> to seperate them into 4 bridges, so vm 0-3 are on bridge "cluster0", 4-7
> are on "cluster1" and so on...
> For that, i changed my xend-config.sxp:
> #(network-script network-bridge)
> (network-script network-bridge bridge=cluster0 vifnum=0)
> (network-script network-bridge bridge=cluster1 vifnum=1)
> (network-script network-bridge bridge=cluster2 vifnum=2)
> (network-script network-bridge bridge=cluster3 vifnum=3)
> But this didn't work. Restart of xend did no error-messages, but neither
> did install four bridges. If i add "bridge=cluster0" to a virtual
> machine and start it, i get the error that the bridge is missing.
> So there are two main questions for me:
> 1. WHY is bridged networking only working for half of the vms'?

Did you try this option specifically:

> 2. What's the fault in my "bridge-multiply"-config?

Does this explanation help?


Todd Deshane

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