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<p class="MsoNormal"><span class="mailbox-inline-edit">> did you</span><span class="none"> mean to say contrail with ML2 not ML3 ?
<o:p></o:p></span></p>
<p class="MsoNormal"><span class="none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span class="none">Should be ML3 since it provides layer 3 networking.<o:p></o:p></span></p>
<p class="MsoNormal"><span class="none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span class="none">> I am not quite sure contrail integration but is ml3 available in icehouse yet ?<o:p></o:p></span></p>
<p class="MsoNormal"><span class="none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span class="none">It is not. <o:p></o:p></span></p>
<p class="MsoNormal"><span class="none"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Raghu Vadapalli [mailto:rvatspacket@gmail.com]
<br>
<b>Sent:</b> Monday, September 29, 2014 1:38 PM<br>
<b>To:</b> NAPIERALA, MARIA H<br>
<b>Cc:</b> dennisml@conversis.de; openstack@lists.openstack.org<br>
<b>Subject:</b> Re: [Openstack] Rackspace abandons Open vSwitch ?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">---<br>
Raghu V. Vadapalli<br>
Principal Software Architect <br>
Smart Packet Solutions<o:p></o:p></p>
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<p class="MsoNormal"><br>
<span class="none">On Monday, Sep 29, 2014 at 1:33 PM, NAPIERALAMARIA H <<a href="mailto:mn1921@att.com" target="_blank">mn1921@att.com</a>>, wrote:</span><br>
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<span class="none"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">On 27.09.2014 06:37, Jason Kölker wrote:</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> On Sat, Sep 27, 2014 at 3:50 AM, Raghu Vadapalli <<a href="mailto:rvatspac...@gmail.com">rvatspac...@gmail.com</a>>
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>>> As per this news article listed below, Rackspace is abandoning Open vSwitch.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>>> Is this where everyone else going in general ?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> <o:p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> That conclusion is inaccurate. The entirety of the public cloud runs<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> openvswitch for both public/servicenet connectivity as well as<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> isolated tenant network features.The article is referring to the<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> private cloud distribution no longer choosing to use the Neutron<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> OpenVswitch plugin<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> (<a href="https://github.com/openstack/neutron/tree/master/neutron/plugins/openvswitch">https://github.com/openstack/neutron/tree/master/neutron/plugins/openvswitch</a>)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> as it is being deprecated. The ML2 plugin replaces this and can use a<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> variety of mechanisms including openvswitch.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> <o:p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> The article's conclusion that openvswitch is not ready for production<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> and high-volume workloads is ludicrous. Versions 2.0+ perform very<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> well with multithreading in the vswitchd process and megaflows in the<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> datapath. However it is important to point out that datapath<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> performance is very much related to the flows programmed. A poorly<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> written flow set will result in bad performance. Tuning the flows and<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">>> optimizing the ability for megaflow'ing is the key to high throughput.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">> That's the theory though and the article seems to talk about practical<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">> problem Rackspace ran into with OVS so it would have been nice to learn<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">> what specifically was the problem.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">> What are the alternatives though? As far as I know the regular linux<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">> bridge lacks most of the features of OVS and these are the only to<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">> options I've played with so far. Is the a third alternative out there<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">> that they've switched to?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">One alternative is OpenContrail vRouter as ML3 plugin. It meets the scale and feature requirements.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Maria<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
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<p class="MsoNormal"><span class="mailbox-inline-edit">did you</span><span class="none"> mean to say contrail with ML2 not ML3 ? I am not quite sure contrail integration but is ml3 available in icehouse yet ?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
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