<html><head><title></title></head><body><!-- rte-version 0.2 9947551637294008b77bce25eb683dac --><div class="rte-style-maintainer" style="white-space: pre-wrap; font-size: small; font-family: 'Courier New', Courier; color: rgb(0, 0, 0);"data-color="global-default" bbg-color="default" data-bb-font-size="medium" bbg-font-size="medium" bbg-font-family="fixed-width">Thanks Tom, this looks helpful.<br><div class="rte-style-maintainer" style="font-size: small; font-family: 'Courier New', Courier; color: rgb(0, 0, 0);"data-color="global-default" bbg-color="default" data-bb-font-size="medium" bbg-font-size="medium" bbg-font-family="fixed-width"><br><div class="bbg-rte-fold-content" data-header="From: tom@openstack.org" data-digest="From: tom@openstack.org"style=""><div class="bbg-rte-fold-summary">From: tom@openstack.org </div><div>Subject: Re: [Openstack-operators] Migrating from nova-network to Neutron in Kilo?<br></div></div><blockquote>On 19/11/15 08:38, Ned Rhudy (BLOOMBERG/ 731 LEX) wrote:<br>> Hello operator friends,<br>><br>> We're laying out our 2016 roadmaps now, and one of the projects the<br>> Bloomberg cloud team would like to undertake is migrating from our<br>> legacy nova-network setup to Neutron. Our current networking is pretty<br>> simple, with tenancies getting /25s carved out from a single large<br>> subnet for fixed IPs and floating IPs being assigned from another large<br>> subnet as first-come-first serve. While there's room for improvement, we<br>> are totally fine with the initial Neutron migration replicating as close<br>> to the same user experience as possible; our primary interest now is<br>> just getting to Neutron, then taking on larger overhauls once we're free<br>> to navigate in the Neutron universe.<br>><br>> That being said, there's very little material out there on people<br>> successfully pulling off nova-network to Neutron migrations. References<br>> on the docs wiki to Neutron migration materials are unfinished and<br>> mostly lead to some year-old abandoned changes in Gerrit, and Google<br>> inexorably leads to the same eBay presentation about migrating from<br>> Folsom nova-network to Havana Neutron+NSX SDN. It has some interesting<br>> and useful information, but it's also about old releases and involved a<br>> lot of additional changes (Folsom->Havana, integrating NSX, etc.),<br>> whereas we're just interested in moving from nova-network to Neutron in<br>> place on our Kilo clusters and carrying as little else along for the<br>> ride as possible.<br>><br>> Therefore, I come to you all to ask for battle stories from anyone who's<br>> gone up against migrating to Neutron and lived to tell the tale. Do your<br>> users roundly curse you and speak angrily of the Great Networking<br>> Betrayal, where you lost all their floating IPs and security groups, or<br>> are you celebrated as the great warlord who slew the diabolical iptables<br>> NAT monster and brought peace and stability (and LBaaS) to cloud<br>> networks everywhere?<br><br>I heard NeCTAR used this script <br>(<a spellcheck="false"href="https://github.com/NeCTAR-RC/novanet2neutron"bbg-destination="rte:bind" data-destination="rte:bind">https://github.com/NeCTAR-RC/novanet2neutron</a> ) with some success to do <br>a live nova-net to neutron, which might have been Juno or Kilo release.<br><br></blockquote><br></div></div></body></html>