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<div class="">On 12 May 2017, at 23:38, joehuang <<a href="mailto:joehuang@huawei.com" class="">joehuang@huawei.com</a>> wrote:</div>
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Hello,
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<div class=""><span style="font-size: 12pt;" class="">Neutron cells aware is not equal to multi-site. </span><span style="font-size: 12pt;" class="">There are lots of multi-site deployment options, not limited to nova-cells,<span class="Apple-converted-space"> </span></span><span style="font-size: 12pt;" class="">whether
to use Neutron-cells/Nova-cells in multi-site deployments, it's up to cloud operator's choice. </span><span style="font-size: 12pt;" class="">For the bug[3], it's reasonable to make neutron </span><span style="font-size: 12pt;" class="">support </span><span style="font-size: 12pt;" class="">cells,
but it doesn't implicate that multi-site should mandatory adopt neutron-cells.</span></div>
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<div class=""><span style="font-size: 12pt; font-family: 'Times New Roman';" class="">[3] </span><a href="https://bugs.launchpad.net/neutron/+bug/1690425" target="_blank" title="Ctrl+Click to follow link" style="font-size: 12pt; font-family: 'Times New Roman';" class="">https://bugs.launchpad.<wbr class="">net/neutron/+bug/1690425</a></div>
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There are also a number of site limited deployments which use nova cells to support scalability within the site rather than only between sites. CERN has around 50 cells for the 2 data centre deployment we have.</div>
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<div>There is also no need to guarantee a 1-to-1 mapping between nova cells and neutron cells. It may be simpler to do it that way but something based on the ML2 subnet would also seem a reasonable way to organise the neutron work while many sites use nova
cells based on one hardware type per cell, for example.</div>
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<div>Tim<br class="">
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<div class=""><font size="3" face="Courier New" class="">Best Regards</font></div>
<font size="3" face="Courier New" class="">Chaoyi Huang (joehuang)</font></div>
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<div id="divRpF457593" style="direction: ltr;" class=""><font face="Tahoma" size="2" class=""><b class="">From:</b><span class="Apple-converted-space"> </span>Armando M. [<a href="mailto:armamig@gmail.com" class="">armamig@gmail.com</a>]<br class="">
<b class="">Sent:</b><span class="Apple-converted-space"> </span>13 May 2017 3:13<br class="">
<b class="">To:</b><span class="Apple-converted-space"> </span>OpenStack Development Mailing List (not for usage questions)<br class="">
<b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [openstack-dev] [neutron] multi-site forum discussion<br class="">
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<div class="gmail_quote">On 12 May 2017 at 11:47, Morales, Victor<span class="Apple-converted-space"> </span><span dir="ltr" class=""><<a href="mailto:victor.morales@intel.com" target="_blank" class="">victor.morales@intel.com</a>></span><span class="Apple-converted-space"> </span>wrote:<br class="">
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri;" class="">Armando,<u class=""></u><u class=""></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri;" class=""><u class=""></u> <u class=""></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri;" class="">I noticed that Tricircle is mentioned there. Shouldn’t be better to extend its current functionality or what are the things that are missing there?</span></p>
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<div class="">Tricircle aims at coordinating independent neutron systems that exist in separated openstack deployments. Making Neutron cell-aware will work in the context of the same openstack deployment.</div>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri;" class="">Regards,<u class=""></u><u class=""></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri;" class="">Victor Morales<u class=""></u><u class=""></u></span></p>
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<p class="MsoNormal"><b class=""><span style="font-family: Calibri;" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="font-family: Calibri;" class="">"Armando M." <<a href="mailto:armamig@gmail.com" target="_blank" class="">armamig@gmail.com</a>><br class="">
<b class="">Reply-To:<span class="Apple-converted-space"> </span></b>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank" class="">openstack-dev@lists.<wbr class="">openstack.org</a>><br class="">
<b class="">Date:<span class="Apple-converted-space"> </span></b>Friday, May 12, 2017 at 1:06 PM<br class="">
<b class="">To:<span class="Apple-converted-space"> </span></b>"OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank" class="">openstack-dev@lists.<wbr class="">openstack.org</a>><br class="">
<b class="">Subject:<span class="Apple-converted-space"> </span></b>[openstack-dev] [neutron] multi-site forum discussion<u class=""></u><u class=""></u></span></p>
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<p class="MsoNormal">Hi folks,<u class=""></u><u class=""></u></p>
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<p class="MsoNormal">At the summit we had a discussion on how to deploy a single neutron system across multiple geographical sites [1]. You can find notes of the discussion on [2].<u class=""></u><u class=""></u></p>
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<p class="MsoNormal">One key requirement that came from the discussion was to make Neutron more Nova cells friendly. I filed an RFE bug [3] so that we can move this forward on Lauchpad.<u class=""></u><u class=""></u></p>
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<p class="MsoNormal">Please, do provide feedback in case I omitted some other key takeaway.<u class=""></u><u class=""></u></p>
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<p class="MsoNormal">Thanks,<u class=""></u><u class=""></u></p>
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<p class="MsoNormal">Armando<u class=""></u><u class=""></u></p>
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<p class="MsoNormal">[1] <a href="https://www.openstack.org/summit/boston-2017/summit-schedule/events/18757/neutron-multi-site" target="_blank" class="">https://www.openstack.org/<wbr class="">summit/boston-2017/summit-<wbr class="">schedule/events/18757/neutron-<wbr class="">multi-site</a><u class=""></u><u class=""></u></p>
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<p class="MsoNormal">[2] <a href="https://etherpad.openstack.org/p/pike-neutron-multi-site" target="_blank" class="">https://etherpad.<wbr class="">openstack.org/p/pike-neutron-<wbr class="">multi-site</a><u class=""></u><u class=""></u></p>
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<p class="MsoNormal">[3] <a href="https://bugs.launchpad.net/neutron/+bug/1690425" target="_blank" class="">https://bugs.launchpad.<wbr class="">net/neutron/+bug/1690425</a><u class=""></u><u class=""></u></p>
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