<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Apr 30, 2014 at 7:40 PM, Salvatore Orlando <span dir="ltr"><<a href="mailto:sorlando@nicira.com" target="_blank">sorlando@nicira.com</a>></span> wrote:<br>

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<div>On 30 April 2014 17:28, Jesse Pretorius <span dir="ltr"><<a href="mailto:jesse.pretorius@gmail.com" target="_blank">jesse.pretorius@gmail.com</a>></span> wrote:<br>

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On 30 April 2014 16:30, Oleg Bondarev <span dir="ltr"><<a href="mailto:obondarev@mirantis.com" target="_blank">obondarev@mirantis.com</a>></span> wrote:<br>


<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">I've tried updating interface while running ssh session from guest to host and it was dropped :(</div>


</blockquote></div></div></div></div></blockquote><div><br></div></div><div>Please allow me to tell you "I told you so!" ;) </div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">


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</div></div></blockquote></div><br></div></div><div class="gmail_extra">The drop is not great, but ok if the instance is still able to be communicated to after the arp tables refresh and the connection is re-established.</div>


<div class="gmail_extra">
<br></div><div class="gmail_extra">If the drop can't be avoided, there is comfort in knowing that there is no need for an instance reboot, suspend/resume or any manual actions.</div></div></blockquote><div><br></div>


</div><div>I agree with Jesse's point. I think it will be reasonable to say that the migration will trigger a connection reset for all existing TCP connections.</div><div>However, what are exactly the changes we're making on the data plane? Are you testing with migrating VIF from a linux bridge instance to an Open vSwitch obne?</div>

</div></div></div></blockquote><div><br></div><div>Actually I was testing VIF move from nova-net bridge br100 to neutron's bridge (qbrXXX) (which is kind of final step in instance migration as I see it)</div><div>Another problem that I faced is clearing network filters which nova-net configures on the VIF, but this seems to be fixed in libvirt now:</div>
<div><a href="https://www.redhat.com/archives/libvirt-users/2014-May/msg00002.html">https://www.redhat.com/archives/libvirt-users/2014-May/msg00002.html</a><br></div><div><br></div><div>Thanks,</div><div>Oleg</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">

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<div><br></div><div>Salvatore</div></font></span><div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">

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