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Can you put them to different vlans? After that it would be very
easy task.<br>
<br>
If not, AFAIK, neutron does not allow this. <br>
<br>
Or you can trick it thinking it is (are) separate networks.<br>
<br>
Create brige (br-join), plug eth to it.<br>
Create to fake external bridges (br-ex1, br-ex2). Join them together
to br-join by patch links
(<a class="moz-txt-link-freetext" href="http://blog.scottlowe.org/2012/11/27/connecting-ovs-bridges-with-patch-ports/">http://blog.scottlowe.org/2012/11/27/connecting-ovs-bridges-with-patch-ports/</a>)<br>
<br>
Instruct neutron like there is two external networks: one on br-ex1,
second on br-ex2.<br>
<br>
But be alert that this not very stable configuration, you need to
maintain it by yourself.<br>
<br>
<div class="moz-cite-prefix">On 04/25/2015 10:13 PM, Mike Spreitzer
wrote:<br>
</div>
<blockquote
cite="mid:OF7ADFF32D.B16200D3-ON85257E32.00693F1F-85257E32.0069A607@us.ibm.com"
type="cite"><font size="2" face="sans-serif">Is there a way to
create multiple external
networks from Neutron's point of view, where both of those
networks are
accessed through the same host NIC? Obviously those networks
would
be using different subnets. I need this sort of thing because
the
two subnets are treated differently by the stuff outside of
OpenStack,
so I need a way that a tenant can get a floating IP of the sort
he wants.
Since Neutron equates floating IP allocation pools with
external
networks, I need two external networks.</font>
<br>
<br>
<font size="2" face="sans-serif">I found, for example, </font><a
moz-do-not-send="true"
href="http://www.marcoberube.com/archives/248"><font size="2"
color="blue" face="sans-serif">http://www.marcoberube.com/archives/248</font></a><font
size="2" face="sans-serif">
--- which describes how to have multiple external networks but
uses a distinct
host network interface for each one.</font>
<br>
<br>
<font size="2" face="sans-serif">Thanks,<br>
Mike</font>
<br>
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