[Users] How do Networks and Vlan-tagging work in oVirt ?

[Matt .]

Hi guys,

Thanks, this clears it more why we have VM and display options and how it's
used on the nics.

What hapens with me on a 3.2 installation when I want to attach a network
without IP (VM option or not) to a Nic I get the noticed error like I told
before:

Error while executing action Setup Networks: Illegal or Incomplete IP
Address


Here is the error from the log:

        eth2 {id=713f2687-6d84-4010-9076-fbfc67cf6831,
vdsId=033febb8-4f52-4253-bb6d-a8807816affd, name=eth2,
macAddress=00:1c:c4:d8:cb:36, networkName=LAN_TEST, bondName=null,
bootProtocol=NONE, address=, subnet=, gateway=null, mtu=0, bridged=false,
speed=1000, type=0, networkImplementationDetails=null}],
    removedNetworks=[],
    removedBonds=[]), log id: 7a99dbd1
2013-02-12 23:31:08,783 INFO
[org.ovirt.engine.core.vdsbroker.vdsbroker.SetupNetworksVDSCommand]
(ajp--127.0.0.1-8702-10) [7289062c] FINISH, SetupNetworksVDSCommand, log
id: 7a99dbd1
2013-02-12 23:31:09,796 ERROR
[org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase]
(ajp--127.0.0.1-8702-10) [7289062c]
org.ovirt.engine.core.vdsbroker.vdsbroker.VDSNetworkException:
VDSGenericException: VDSNetworkException: Specified netmask or gateway but
not ip
2013-02-12 23:31:09,797 ERROR
[org.ovirt.engine.core.vdsbroker.VDSCommandBase] (ajp--127.0.0.1-8702-10)
[7289062c] Command SetupNetworksVDS execution failed. Exception:
VDSNetworkException: VDSGenericException: VDSNetworkException: Specified
netmask or gateway but not ip
2013-02-12 23:31:09,798 ERROR
[org.ovirt.engine.core.bll.network.host.SetupNetworksCommand]
(ajp--127.0.0.1-8702-10) [7289062c] Command
org.ovirt.engine.core.bll.network.host.SetupNetworksCommand throw Vdc Bll
exception. With error message VdcBLLException:
org.ovirt.engine.core.vdsbroker.vdsbroker.VDSNetworkException:
VDSGenericException: VDSNetworkException: Specified netmask or gateway but
not ip


Why does this happen on None Bootproto or DHCP ?


2013/2/12 Moti Asayag <masayag at redhat.com>

> On 02/11/2013 12:37 PM, Matt . wrote:
> > I'm struggeling setting up my network in oVirt at the moment as I would
> > like to seperate specific VM's from other devices/clients in my network.
> >
>
> You should define the 'logical networks' which describe the networks of
> your setup.
> See the response to Nicolas on this thread of the steps to achieve it.
> If wish to create a network dedicated to storage which shouldn't allow
> VMs to use it, it should be defined as non-vm network.
> Once the network is assigned to a cluster, you can add new network
> interface to your VMs which defines to which bridges (vm networks) they
> are connected: hence, segregating the VMs is done by the vlan-id of the
> bridge the VMs are connected to.
>
>
> > I have decent setup switching network using Vlans, this is also the fact
> > for ovirt and the storage nodes where teh ports are seperated between
> > storage and management.
> >
> > Because I want to manage which client can acces which VM I need Vlan
> > tagging. The question is where are we going to do this, on the VM itself
> > or on the network I attach the VM's Nic to.
> >
> > Because of the lacking documentation at this point it's not clear, so I
> > would like to figure out and maybe change the wiki there.
> >
> > I also cannot understand why I can set an IP to a network and only the
> > subnet where I also can set DHCP which puts also the gateway.
> >
>
> The default gateway can be provided for the management network only. You
> can define its IP address either as static by providing its known IP
> address or letting it determine the address from the DHCP server.
> You cannot select 'None' as boot-protocol for the management network
> since then the engine will not be able to communicate with the host.
>
> However you can select 'none' boot-protocol to any other networks if
> wishes.
>
> > I'm not able to set None or DHCP and can only add a network with IP, but
> > what IP and why ? Or just a 192.16.x.0 with a 255.255.255.0 subnet ?
> >
> > I hope someone can clear this a little bit more out.
> >
>
>
>
> > Thanks!
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
>
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