Re: [ovirt-users] Vlans and subnets

Hi Demeter, This is an issue others have stumbled onto before, so it probably needs to be fixed; it's sort of a chicken-and-egg problem. For the time being, I think the workaround is to set up your storage network manually on the host as vlan101 (in an oVirt-compatible manner) before running engine-setup. In engine-setup you would then name the vlan102 device for the management network (which is used to communicate with hosts). Setting up the storage network in an oVirt-compatible manner can be performed by pre-installing vdsm (i.e. "yum install vdsm") yourself on your first host, then run something like: vdsClient -s 0 addNetwork bridge=storageNetworkName vlan=101 nic=eth0 \ BOOTPROTO=dhcp I hope I got it approximately right, can't commit that it's accurate :) I've also added specific answers to your questions below, please let us know if this does the trick or if you require more assistance. On 14/10/14 19:58, Demeter Tibor wrote: Could you be more specific? The management network is used to communicate between the engine and the hosts, the storage network is only used by the hosts (and not the engine) as far as I know. To my understanding no, see above point. Yes, see above point :) Not sure how much "separation" you're looking to get, but shouldn't be a problem. For example, You can put the additional ("public") networks on different VLANs and make sure to tag/untag packets as they enter/leave your oVirt deployment. Keep in mind to also configure the additional networks on the hosts and VMs. Not sure about your topology, but if your hosts are on the same broadcast domain then there's no reason why this traffic will put unnecessary load on your router.