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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hello,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We made some changes on our compute nodes in the “/etc/neutron/neutron.conf”. For example qpid_hostname. But nothing what effects the network infrastructure in the compute node.<o:p></o:p></p><p class=MsoNormal>To apply the changes I think we need to restart the “neutron-openvswitch-agent” service.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>By restarting this service the VM gets disconnected for around one ping, the reason is the restart causes recreation of the int-br-bond0 and phy-br-bond0 interfaces:<o:p></o:p></p><p class=MsoNormal>ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 -- --may-exist add-br br-int<o:p></o:p></p><p class=MsoNormal>ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 -- set-fail-mode br-int secure<o:p></o:p></p><p class=MsoNormal>ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 -- --if-exists del-port br-int patch-tun<o:p></o:p></p><p class=MsoNormal>ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 -- --if-exists del-port br-int int-br-bond0<o:p></o:p></p><p class=MsoNormal>kernel: [73873.047999] device int-br-bond0 left promiscuous mode<o:p></o:p></p><p class=MsoNormal>ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 -- --if-exists del-port br-bond0 phy-br-bond0<o:p></o:p></p><p class=MsoNormal>kernel: [73873.086241] device phy-br-bond0 left promiscuous mode<o:p></o:p></p><p class=MsoNormal>ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 -- --may-exist add-port br-int int-br-bond0<o:p></o:p></p><p class=MsoNormal>kernel: [73873.287466] device int-br-bond0 entered promiscuous mode<o:p></o:p></p><p class=MsoNormal>ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=10 -- --may-exist add-port br-bond0 phy-br-bond0<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is there a way to apply this changes without loose pings?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Cheers<o:p></o:p></p><p class=MsoNormal>Chris<o:p></o:p></p></div></body></html>