<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt">These are great news Gary.<br>Do you happen to know if the patch will be also available for folsom?<br><br>Thanks,<br>Gabriel<br><br><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Gary Kotton <gkotton@redhat.com><br> <b><span style="font-weight: bold;">To:</span></b> jian.wen@canonical.com <br><b><span style="font-weight: bold;">Cc:</span></b> openstack@lists.launchpad.net <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, January 23, 2013 10:08 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Openstack] Is the Quantum a network bottleneck<br> </font>
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On 01/22/2013 07:02 PM, Jian Wen wrote:
<blockquote type="cite">
<div class="yiv1327484moz-cite-prefix">On 2013年01月22日 10:56, Balamurugan V G
wrote:<br>
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<blockquote type="cite">Hi,<br>
<br>
In an Openstack deployment using Quantum, the compute nodes
access the public/external network via the network node (as per
the diagram http://docs.openstack.org/trunk/openstack-network/admin/content/connectivity.html).<br>
<br>
So if I have a hundred compute nodes each running hundred
instances, wouldn't the link to the network node choke? Also
wouldnt the network node's resources be a bottleneck?<br>
<br>
Regards,<br>
Balu<br>
<br>
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Quantum Multi-host DHCP and L3 <br>
<a rel="nofollow" class="yiv1327484moz-txt-link-freetext" target="_blank" href="https://blueprints.launchpad.net/quantum/+spec/quantum-multihost">https://blueprints.launchpad.net/quantum/+spec/quantum-multihost</a><br>
</blockquote>
<br>
Yes. At the moment the network node is the bottleneck. There is a
patch upstream in review that will solve this issue:<br>
<a rel="nofollow" class="yiv1327484moz-txt-link-freetext" target="_blank" href="https://review.openstack.org/#/c/18216/">https://review.openstack.org/#/c/18216/</a><br>
<br>
Hopefully this will be ready in the Grizzly cycle.<br>
<br>
In addition to this it also provides HA for the L3 and DHCP agents.<br>
Thanks<br>
Gary<br>
<br>
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Jian Wen
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