Hi Moti: Have thrown together a diagram of how I think it should look :- https://cloudvault.innoffice247.com/public.php?service=files&t=9e5768... As each oVirt host has a single activated NIC am trying to see how I can use OVS, to provide OSPF & SFLOW, and vLAN capability like I have used manually with KVM and OVS. From my dev machine this is how OVS looks: [root@dev01 ~]# ovs-vsctl show 55a2af2f-daf5-4f01-a757-9bccaf4f6932 Bridge "ovsbr0" Port "vnet0" Interface "vnet0" Port "vnet1" tag: 8 Interface "vnet1" Port "vnet13" tag: 14 Interface "vnet13" Port "vnet9" tag: 10 Interface "vnet9" Port "mgmt0" Interface "mgmt0" type: internal Port "vnet14" tag: 8 Interface "vnet14" Port "ovsbr0" Interface "ovsbr0" type: internal Port "vnet11" tag: 8 Interface "vnet11" Port "vnet10" tag: 13 Interface "vnet10" Port "vnet12" tag: 13 Interface "vnet12" Port "em1" Interface "em1" Port "vnet3" tag: 14 Interface "vnet3" Port "vnet4" tag: 20 Interface "vnet4" Port "vnet2" tag: 10 Interface "vnet2" ovs_version: "2.3.90" So I have a single NIC with a public facing IP and then I present that IP as a gateway, via the bridge, to a VM firewall which then handles the vlans inside that. Hope that makes sense ? Thanks, Phil ----- Original Message ----- From: "Phil Daws" <uxbod(a)splatnix.net&gt; To: "Moti Asayag" <masayag(a)redhat.com&gt; Cc: "users" <users(a)ovirt.org&gt; Sent: Tuesday, 21 October, 2014 5:26:33 PM Subject: Re: [ovirt-users] oVirt 3.5 & Neutron (Will this work?) Hi Moti: thank you for detailed response. I will diagram what I am thinking as that should explain it a whole lot better :) Thanks, Phil ----- Original Message ----- From: "Moti Asayag" <masayag(a)redhat.com&gt; To: "Phil Daws" <uxbod(a)splatnix.net&gt; Cc: "users" <users(a)ovirt.org&gt; Sent: Tuesday, 21 October, 2014 4:50:45 PM Subject: Re: [ovirt-users] oVirt 3.5 & Neutron (Will this work?) Hi Phil, See answers/questions inline. ----- Original Message ----- A new host is not mandatory. You need to move an existing host to maintenance and reinstall it. On the "Re-install" dialog select the details of the network provider. Do you intend to use a single neutron appliance for each host or to use a single neutron appliance to manage connectivity on the two hosts ? Is there L2 connectivity between the hosts ? Or by "not connected to anything" you actually mean there is no wiring between the hosts ? If this is the first case, you should be able to define for each subnet a gateway via the 'Add subnet' dialog on the engine. That gateway should be used for obtaining connectivity for the vms to the public/external network. You'll have to configure it manually though (doesn't covered as part of the ovirt-neutron integration). If there is really no connectivity between the hosts and the only outgoing traffic from each host is via the ovirtmgmt network - it is problematic. According to [1], you'll have to specify as bridge mappings on the network provider agent details: br-neutron:ovirtmgmt, where ovirtmgmt will replace the neutron. But that also implies that you'll share any traffic going through the integration bridge of neutron and the hosts with the management network and respectively with the public network, hence the dhcp agents connected to br-int (which is connected to br-neutron and to ovirtmgmt) will receive request from the 'ovirtmgmt' network as well. Haven't tried it myself, and can't expect the results. [1] http://www.ovirt.org/images/2/2a/Neutron-appliance-topology.png _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users