Hi, I recently worked on KVM with Open vSwitch, but controlled by NSX (aka Nicira). Apart from the controller and some settings, it should be the same.
Some pointers: http://docs.cloudstack.apache.org/en/latest/networking/ovs-plugin.html https://cwiki.apache.org/confluence/display/CLOUDSTACK/KVM+with+OpenVSwitch http://blog.remibergsma.com/2015/04/04/adding-a-kvm-cluster-with-nsx-networking-to-cloudstack/ (skip the NSX stuff) It is not needed anymore to compile ovs yourself. I worked with CentOS6 and 7 and Ubuntu 14.04 out of the box. There is some extra work to get STT to work, but since you do use GRE instead you can ignore it. This is a script I wrote to help setup KVM/OVS/CloudStack in my lab to be able to do quick POCs. It could help you too in setting up the bridges and interfaces: https://github.com/remibergsma/openvswitch-kvm-config To answer your question about the tunnels: in my case they are created on the fly. I would just give it a go and see if ovs creates any tunnels. Hope this helps. Regards, Remi 2015-04-24 7:50 GMT+02:00 Ignazio Cassano <ignaziocass...@gmail.com>: > Thanks a lot. > What I need to know is how I must prepare kvm nodes for openvswitch: for > example if I must create a gre tunnel between nodes or if it is enough > adding an address on each openvswitch bridge. > Regards > Il giorno 24/apr/2015 06:22, "Sanjeev N" <sanj...@apache.org> ha scritto: > > > Hi , > > > > We can't avoid configuring vlans on physical switched even if we use OVS > > instead of bridge more on KVM. One option would be to use GRE isolation > > instead of VLAN based in creating Physical network in a zone. > > > > -Sanjeev > > > > On Thu, Apr 23, 2015 at 4:05 PM, Ignazio Cassano < > ignaziocass...@gmail.com > > > > > wrote: > > > > > Hi all, > > > I would like to install a new cloudstack infrastracture with kvm nodes > > but > > > I also would like to use OVS to configure guests vlan avoiding to > > configure > > > them on > > > physical switches. > > > I am planning to user three kvm nodes but I do not know how prepare > them > > to > > > use OVS: must I create a gre tunnel between nodes ? > > > Regards > > > > > >
