Hi guys, last week we tried to install cloudstack 4.5.1 with two kvm nodes defining an advanced zone with gre isolation. Ovs never appears on network service providers but guests vlan are automatically created on ovs. Since gre tunnel between nodes has not automatically generated , we set up it manually and now VMs can communicate between nodes. Why ovs does not appear in network service provider panel ? It should not appear if "vlan isolation" was been choosen in configuration but we choose gre! Why gre tunnel was not generated ? Another question is related to the availability of ovs controllers ? Has anyone tried to configure any opensource openvswitch controller with cloudstack ? Many thanks Ignazio Il giorno 24/apr/2015 10:50, "Remi Bergsma" <r...@remi.nl> ha scritto:
> 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 > > > > > > > > > >
