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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Steven and Emilien,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">    I need your advice on how to proceed with the fix in
<a href="https://review.openstack.org/#/c/521632/">https://review.openstack.org/#/c/521632/</a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The issue in question is that code in puppet-neutron for the Nexus switch, performs a ping test to see if all the Nexus switches specified in the configuration are actually reachable.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">After that it performs a ssh-keyscan and adds the list of Nexus switches to the list on known hosts on the Controllers.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Code can be viewed here: <a href="https://github.com/openstack/puppet-neutron/blob/master/manifests/plugins/ml2/cisco/nexus_creds.pp">
https://github.com/openstack/puppet-neutron/blob/master/manifests/plugins/ml2/cisco/nexus_creds.pp</a> (starting from line #104)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I spoke to Emilien about this during the Sydney summit.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Since then I have tried a bunch of different ways to solve this problem and I am trying to figure out the best way to proceed:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><![endif]><span style="font-size:11.0pt">Adding retry login around the ping test:
<a href="https://review.openstack.org/#/c/521632/2">https://review.openstack.org/#/c/521632/2</a><o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><![endif]><span style="font-size:11.0pt">Changing the order in which Neutron ML2 plugins/services were initialized in
<a href="https://review.openstack.org/#/c/521632/8">https://review.openstack.org/#/c/521632/8</a> (Failed gate checks)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><![endif]><span style="font-size:11.0pt">I also tried to remove a dependency between the ping test and the ssh-keyscan steps. (code in https://review.openstack.org/#/c/521632/7)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt"><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">      
</span></span></span><![endif]><span style="font-size:11.0pt">Finally, in the latest version of the fix I completely removed the ping test and ssh-keyscan steps to make progress. (<a href="https://review.openstack.org/#/c/521632/)">https://review.openstack.org/#/c/521632/)</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Although, the ping test and ssh-keyscan are not essential for the functioning of the Nexus driver, I would like to find a way to keep this code.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Please let me know what would be the best way to proceed.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Sandhya<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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