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<p>Hi,</p>
<p> I've just known about OVS, so please bear with me if I'm
asking something silly or already in the FAQs. Don't hesitate to
RTFM me if that's the case.<br>
</p>
<p> We have a main datacenter and a backup one (for disaster
recovery), and would like to be able to start VMs in any of them
without changing IP addresses. For example: let's say I have a VM
with IP 10.0.0.10 in the main datacenter, and for whatever reason,
I have to move it to the backup one. I'd like it to be moved with
the same IP, so we needn't change DNS entries, and have users
access it without notice.</p>
<p> Communication between main and backup datacenters would be
done via a dedicated link, with Linux firewalls at both ends, and
users would have to pass through those firewalls to access the
VMs. The firewalls would have physical interfaces connecting them
to the VM network, the user network and the dedicated network that
links the two datacenters. Ideally, when a user wants to get to
some VM, traffic would go to one of the firewalls and it would
magically know how to reach it, be it in the main or the backup
datacenter.<br>
</p>
<p> I think this could be done with something in the firewalls
that bridged together the physical interface and the dedicated
link, and that's where OVS comes in. Could it be used to do this?</p>
<p> Sorry for sucking at explaining myself. Please, feel free to
ask whatever I didn't make clear enough.<br>
</p>
<p> Thanks in advance,<br>
</p>
<div class="moz-signature">-- <br>
<title></title>
Roberto Suárez Soto<br>
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Consulting</a> (+34 881 922 600)<br>
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