<div dir="ltr"><div>Paul, if you can set up a VLAN on your network infrastructure between the two hosts, I'll share the recipe I use with Open VSwitch. We trunk a VLAN between our hosts for sandboxed guests, setting up a OVS bridge on each host that handles guests but also has a connection onto the VLAN. Are you using any configuration tool? I've got this in Puppet but should be able to convert to a shell script.</div><div><br></div><div>Cheers,</div><div><br></div><div>- Peter<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 29 Jun 2020 at 17:45, Paul O'Rorke <<a href="mailto:paul@tracker-software.com">paul@tracker-software.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Thanks Laine,</p>
<p>I will take a look at Open vSwitch, it looks interesting.</p>
<p>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?</p>
<p>Needless to say I would be supportive of said feature being
implemented by those more competent than I...<br>
</p>
<p>Jocularity aside, thanks for the heads up on Open vSwitch.<br>
</p>
<div>
<p><b>Paul O'Rorke</b><br>
<br>
</p>
<p style="margin-bottom:0cm;line-height:100%"><br>
</p>
</div>
<div>On 2020-06-29 9:13 a.m., Laine Stump
wrote:<br>
</div>
<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>
</blockquote>
</div>
</blockquote></div>