Hi, It will be created when you run the first VM on that guest isolated network.
Thanks, --Tuna On Wed, Jul 30, 2014 at 2:21 PM, Michael Li <cloudcomp...@163.com> wrote: > Hi Nguyen, > Thanks for your reply. Did u mean when I create a gre network offering use > ovs as service provider for connectity, and then create a guest isolated > network use this offering, at this point a OvsTunnel bridge will be created > ? > > Regards > > > > > > > > > > At 2014-07-25 10:17:08, "Nguyen Anh Tu" <t...@apache.org> wrote: > >Michael, > > > >OVSTunnelxxx is automatically created by Ovs controller. The xxx value is > >generated between VLAN range you set in the beginning. For each guest > >network you create, Ovs controller will add one OvsTunnel bridge. > > > >Thanks, > > > >--Tuna > > > > > >On Fri, Jul 25, 2014 at 7:46 AM, Michael Li <cloudcomp...@163.com> wrote: > > > >> Hi Nguyen, > >> Should I create OVSTunnelxxx ahead like cloudbr0 and cloud0 ? But how to > >> confirm the xxx in OVSTunnelxxx, because it's a dynamic value between > the > >> vm creatation. > >> > >> > >> Regards > >> > >> > >> > >> > >> At 2014-07-24 06:08:55, "Nguyen Anh Tu" <t...@apache.org> wrote: > >> >Hi Michael, > >> > > >> >The GRE feature on Cloudstack creates OVSTunnelxxx bridges with > >> OpenvSwitch > >> >to serve tunnel between vms, not cloudbr. Please use ovs-vsctl utility > to > >> >check if OVSTunnel460 is exist. Remember to blacklist module bridge. > >> > > >> >This might help: > >> > > >> > https://cwiki.apache.org/confluence/display/CLOUDSTACK/KVM+with+OpenVSwitch > >> > > >> >Thanks, > >> > > >> >--Tuna > >> > > >> > > >> >On Thu, Jul 24, 2014 at 8:43 AM, Michael Li <cloudcomp...@163.com> > wrote: > >> > > >> >> In 4.4, Can somebody explain, why use "OVSTunnelxxx" for GRE tunnel > >> >> device, and not "cloudbr1" ? > >> >> When create VM, this will result an exception: > >> >> > >> >> 2014-07-23 21:03:35,886 WARN [kvm.resource.LibvirtComputingResource] > >> >> (agentRequest-Handler-5:null) LibvirtException > >> >> org.libvirt.LibvirtException: Cannot get interface MTU on > >> 'OVSTunnel460': > >> >> no such device > >> >> at org.libvirt.ErrorHandler.processError(Unknown Source) > >> >> at org.libvirt.Connect.processError(Unknown Source) > >> >> at org.libvirt.Connect.processError(Unknown Source) > >> >> at org.libvirt.Connect.domainCreateXML(Unknown Source) > >> >> at > >> >> > >> > com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.startVM(LibvirtComputingResource.java:1239) > >> >> at > >> >> > >> > com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.execute(LibvirtComputingResource.java:3798) > >> >> at > >> >> > >> > com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:133 > >> >> 3) > >> >> at com.cloud.agent.Agent.processRequest(Agent.java:501) > >> >> at > >> com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:808) > >> >> at com.cloud.utils.nio.Task.run(Task.java:84) > >> >> at > >> >> > >> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > >> >> at > >> >> > >> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > >> >> at java.lang.Thread.run(Thread.java:722) > >> >> > >> >> I found code as below: > >> >> public InterfaceDef plug(NicTO nic, String guestOsType) > >> >> } else if (nic.getBroadcastType() == > >> Networks.BroadcastDomainType.Vswitch) > >> >> { String vnetId = > >> >> Networks.BroadcastDomainType.getValue(nic.getBroadcastUri()); > >> >> String brName = "OVSTunnel" + vnetId; > >> >> > >> >
