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

Wed Feb 13 06:48:32 UTC 2013

----- Original Message -----
> On 02/13/2013 12:40 AM, Matt . wrote:
> > 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:
> 
> Could you attach the rest parameters of this command ? (grep for all
> the
> lines from the log that include the string: 7289062c)

Even better if you could attach all the parameters printed as part of SetupNetworksVDSCommand logging.
It seems that part is missing which makes it hard to identify what is the problem.

> 
> > 
> >         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
> > <mailto: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 <mailto:Users at ovirt.org>
> >     > http://lists.ovirt.org/mailman/listinfo/users
> >     >
> > 
> > 
> 
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