<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Pavel,<br></div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span class="tab"> why are you restarting Open vSwitch? I think these steps should work when you have to:<br><br>- stop quantum-ovs-plugin-agent<br>- stop openvswitch services<br>- start openvswitch services<br>- run quantum-ovs-cleanup<br>- start quantum-ovs-plugin-agent<br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span class="tab"><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span
class="tab">Re, Darragh.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span class="tab"> <br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">>Message: 3<br>>Date: Thu, 26 Sep 2013 13:50:36 +0200<br>>From: Pavel Stano <stano@websupport.sk><br>>To: openstack@lists.openstack.org<br>>Subject: [Openstack] loop on network with openvswitch + vlans<br>>Message-ID: <52441F8C.50509@websupport.sk><br>>Content-Type: text/plain; charset=ISO-8859-1; format=flowed<br>><br>>Hi,<br>><br>>we encountered some problem on our setup with openvswitch with multiple <br>>nodes.<br>>When openstack is running ok and we restart openvswitch on 2 or more <br>>compute nodes, flow tables on
br-int will be cleared and <br>>quantum-plugin-openvswitch-agent will not re-configure it until it will <br>>be restarted too.<br>>Ports are still attached to br-int but without flows.<br>>So after flows are cleared there occur loop on network.<br>><br>>We want to fix it by modifing openvswitch init script to dump/load flows <br>>when stop/start/restart, it dont do it automatically. Or another <br>>alterantive is forcibly remove br-int when stopping openvwswitch.<br>><br>>And of course automatically restart quantum-plugin-openvswitch-agent <br>>after openvswitch restart.<br>><br>>Anyone encounter same problem and/or have some better solution ?<br>><br>>Thanks<br>>--<br>>[ Ohodnotte kvalitu mailu: <a target="_blank" href="http://nicereply.com/websupport/Stano/">http://nicereply.com/websupport/Stano/</a> ]<br>><br>>Pavel Stano | Troubleshooter<br></div></div></body></html>