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<p>Thanks Laine,</p>
<p>I got another suggestion, off list, about using vxlans that I
will also look into. <br>
</p>
<p>I would be more than happy to post what I eventually decide to
use for production.</p>
<p>regards</p>
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<p><b>Paul O'Rorke</b><br>
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<div class="moz-cite-prefix">On 2020-06-29 12:46 p.m., Laine Stump
wrote:<br>
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<blockquote type="cite"
cite="mid:c06d6ed7-0d0c-4a5f-744d-3bcc81b96d83@redhat.com">On
6/29/20 12:43 PM, Paul O'Rorke wrote:
<br>
<blockquote type="cite">Thanks Laine,
<br>
<br>
I will take a look at Open vSwitch, it looks interesting.
<br>
<br>
I am a generalist, I need to know enough about a lot of things
to get many different tasks done, but do not have the in depth
knowledge required to "patch" anything. If I manage to wrangle
a working solution should I post it?
<br>
</blockquote>
<br>
Even a list of the steps you took to implement it manuall external
to libvirt would be useful. Maybe that would inspire someone else
to add support in libvirt virtual networks. We used to put stuff
like that in the wiki, but I think the preferred location has
changed / is changing and I'm not sure at the moment what the new
norm is.
<br>
<br>
<blockquote type="cite">
<br>
Needless to say I would be supportive of said feature being
implemented by those more competent than I...
<br>
<br>
Jocularity aside, thanks for the heads up on Open vSwitch.
<br>
<br>
*Paul O'Rorke*
<br>
<br>
<br>
On 2020-06-29 9:13 a.m., Laine Stump wrote:
<br>
<blockquote type="cite">On 6/29/20 11:01 AM, Paul O'Rorke wrote:
<br>
<blockquote type="cite">Hi all,
<br>
<br>
I couldn't find any documentation on this, hopefully someone
can point me in the right direction.
<br>
<br>
I recently set up a sand-boxed environment for our
developers. There are domain controller(s), workstations and
servers in there. The whole thing is running on a single
host using a "Virtual Network" defined in virt-manager on
that host.
<br>
<br>
Now I find I want to add more guests and there are not
enough resources on this one host. Can I somehow make this
Virtual Network available to two hosts? I do not want to
move to a bridged network and have to physically join the
two hosts with a discrete link when they are already on the
same subnet at the host level.
<br>
<br>
Is that possible?
<br>
</blockquote>
<br>
You might be able to this using OpenvSwitch (iow "probably
can, but I don't know the details" :-)) but libvirt doesn't
have anything to set it up for you; you would need to create
and configure the OVS switch outside of libvirt, then attach
the libvirt guests to that switch (using "<interface
type='bridge'> ... <virtualport type='openvswitch'>
...")
<br>
<br>
I've idly thought about having this as a libvirt feature over
the years, but as I never have that many guests, it was never
a personal priority, and it wasn't immediately clear what was
the best way to handle, e.g. DHCP, and routing to the outside.
Definitely "patches are welcome" though :-)
<br>
<br>
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