On yesterday, we tried to install acs 4.4.2 and we found "ovs" in network service provider panel. It never appears in acs 4.5.1. Now we have to verify if a gre tunnel is automatically created with an ovs network offering. We are trying with centos 6.6 and ovs 2.3.1: we suggest to leave the ovs kernel module supplied by centos because the ovs 2.3.1 module causes some kernel panics. Il giorno 01/giu/2015 09:31, "Vadim Kimlaychuk" <vadim.kimlayc...@elion.ee> ha scritto:
> Hello Ignazio, > > I haven't been working with KVM and OVS for a while, but my > previous experience with this plugin was unlucky. I will put some personal > thoughts here and do not pretend to be 100% correct in all the points: > 1. There is a number of OVS versions and which one(s) are > officially supported -- don't know. Documentation said that is 1.9 (if you > patch it), but I have successfully used 2.x versions without errors. Think > documentation is outdated. Still I was not sure that it is properly > supported at CS level. > 2. There are number of problems with plugin activation since > 4.4 version. Look here for example: > https://issues.apache.org/jira/browse/CLOUDSTACK-7446 > 3. I've been using OVS with VLAN isolation and have seen it is > working with CS properly. What does exactly do "plugin activation" - don't > know. May be plugin should put some more network offers. But since it was > broken I was not able to test it. > 4. Didn't try GRE. Have nothing to say here. > 5. The overall feeling -- this functionality is not yet > mature. I also lacks documentation. Take it on your own risk > > Regards, > > Vadim > > -----Original Message----- > From: Ignazio Cassano [mailto:ignaziocass...@gmail.com] > Sent: Saturday, May 30, 2015 12:33 PM > To: users@cloudstack.apache.org; r...@remi.nl > Subject: Re: cloudstack kvm openvswitch > > 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+OpenVS > > witch > > > > http://blog.remibergsma.com/2015/04/04/adding-a-kvm-cluster-with-nsx-n > > etworking-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 > > > > > > > > > > > > > > >
