[ovirt-users] management interface

Tue Aug 9 00:38:45 EDT 2016

Edy,

Just wanted to report back that I made all changes and all worked
as expected.
I took your advice and left the ovritmgmt interface alone and didn't tag
it. All I did was move it to another interface and re-ip it. The
interface was tagged at the chassis.

Thanks again.

Regards,

--
Fernando Fuentes
ffuentes at txweather.org
http://www.txweather.org

On Fri, Aug 5, 2016, at 12:50 PM, Edward Haas wrote:
>
>
> On Thu, Aug 4, 2016 at 11:50 PM, Fernando Fuentes
> <ffuentes at darktcp.net> wrote:
>> __
>> Edward,
>>
>> I am sorry that the diagram was not clear enough.
>>
>> There is two bonds (4 phisical nic's, each pair is LACP). One for
>> mgmt traffic only and one to carry untag and tag traffic.
>> But I do understand your point.
>> I will try to separate this and have everything on its own
>> access port.
>>
>> To move my current ovirtmgmt interface to a new one all I have to do
>> is create one and assign it and remove the old one correct?
>> Thanks again!
>
> Separating the management to its own bond and everything else to a
> second bond sounds reasonable.
> So in this case, it will be less risky to just leave the ovirtmgmt as
> is and move the other networks to the other bond.
> If the current ovirtmgmt is on a non-vlan network, just set the switch
> that connects to this bond slaves as access ports of vlan 35.
> It is preferable not to play too much with the management network, as
> you may loose the host (although VDSM has a safety
> process in place that will revert the change in case Engine-Host
> connectivity is lost).
> If you prefer to move ovirtmgmt, make sure you perform the network
> detach and attach steps (including any VLAN changes)
> in one transaction (change what you need and then do an apply for
> everything).
> Thanks,
> Edy.
>
>>
>>
>>
>> Regards,
>>
>>
>>
>> --
>> Fernando Fuentes
>> ffuentes at txweather.org
>> http://www.txweather.org
>>
>>
>>
>>
>> On Thu, Aug 4, 2016, at 02:07 AM, Edward Haas wrote:
>>> Hi Fernando,
>>> From what I could understand, you would like to have 3 networks, all
>>> on the same bond:
>>> (I do not understand from the diagram that you have two bonds, you
>>> mentioned only bond0)
>>> - ovirtmgmt - vlan35 at bond0
>>> - dmz vm network - vlan42 at bond0
>>> - default vm network - untag at bond0
>>>
>>> Based on the tag, traffic that enters bond0 will be forwarded to the
>>> relevant network.
>>> Any traffic that enters bond0 and is either untag or has a tag that
>>> does not correspond to the defined vlans,
>>> will be forwarded to the non-vlan network (default vm in this case).
>>> Note that when packets pass a vlan interface, they are stripped of
>>> their tag.
>>>
>>> I personally consider a mix of tag and untag on the same iface/port
>>> as bad practice, but there may be reasons to
>>> choose it. If you can, try having all networks with vlans, and set
>>> the switch ports correctly to reflect that.
>>> Any other device on the network, like the router, can be connected
>>> to the switch to an access port (say of vlan 100),
>>> so traffic there is untag, and when traffic goes to the ovirt host,
>>> it will go tagged 100.
>>> Thanks,
>>> Edy.
>>>
>>> On Tue, Aug 2, 2016 at 9:22 PM, Fernando Fuentes
>>> <ffuentes at darktcp.net> wrote:
>>>> __
>>>> I answer my own question.
>>>> "I think" lol
>>>>
>>>> I am going to create a new ovirtmgmt logical network with a vlan
>>>> tag and than move my hosts in to it for management. This interface
>>>> is not part of the vm network.
>>>>
>>>> The rest of the logical networks with vlans will be tagged and part
>>>> of the vm network.
>>>> I think that logic is right.
>>>> Thoughts?
>>>>
>>>>
>>>> Regards,
>>>>
>>>>
>>>> --
>>>> Fernando Fuentes
>>>> ffuentes at txweather.org
>>>> http://www.txweather.org
>>>>
>>>>
>>>>
>>>>
>>>> On Sun, Jul 31, 2016, at 11:43 PM, Fernando Fuentes wrote:
>>>>> Right now as we stand boht ovirt management and LAN data crosses
>>>>> the same interface.
>>>>> I have two bonds. I want to move ovirt management to its own bond
>>>>> and tag it with vlan id 35.
>>>>>
>>>>> Than I wan to move my LAN which has no tag and my dmz that does
>>>>> have a tag in to my secondary bond.
>>>>>
>>>>> The switch is all configured what I am not sure is when making the
>>>>> logical network do I make the LAN a "VM Network"?
>>>>> And the same question for my dmz tagged vlan...
>>>>>
>>>>> I attached a small diagram that explains what I am trying to
>>>>> accomplish... I hope :D
>>>>>
>>>>>
>>>>> Thanks for the help.
>>>>>
>>>>> Regards,
>>>>>
>>>>>
>>>>> --
>>>>> Fernando Fuentes
>>>>> ffuentes at txweather.org
>>>>> http://www.txweather.org
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Jul 31, 2016, at 12:50 PM, Edward Haas wrote:
>>>>>>
>>>>>>
>>>>>> On Sun, Jul 31, 2016 at 7:19 PM, Fernando Fuentes
>>>>>> <ffuentes at darktcp.net> wrote:
>>>>>>> Team,
>>>>>>>
>>>>>>> Is it possible to move the ovirt management interface to a
>>>>>>> separate vlan
>>>>>>> and keep it from been on the same interface as my LAN?
>>>>>>
>>>>>> Networks, including the management one, can be assign as non-vlan
>>>>>> or as vlan on
>>>>>> different nics/bonds.
>>>>>> If you want to assign two or more networks on the same nic/bond,
>>>>>> only one can remain
>>>>>> non-vlan, the rest must be set with a vlan.
>>>>>> Vlan networks require that traffic entering the nic/bond is
>>>>>> tagged, therefore, the switch port
>>>>>> that the nic is connected to must be set as a trunk.
>>>>>> If you have a specific setup in mind, please draw a network
>>>>>> diagram for us.
>>>>>>
>>>>>>>
>>>>>>> IE: assign a tag to ovirtmanagement and keep another interface
>>>>>>> as untag
>>>>>>> for my LAN to use with the VM's
>>>>>>>
>>>>>>> Thoughts ideas?
>>>>>>>
>>>>>>> TIA!
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>>> --
>>>>>>>  Fernando Fuentes ffuentes at txweather.org
>>>>>>>  http://www.txweather.org
>>>>>>>  _______________________________________________
>>>>>>>  Users mailing list Users at ovirt.org
>>>>>>>  http://lists.ovirt.org/mailman/listinfo/users
>>>>>
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>>>>> Email had 1 attachment:

>>>>>  * vlans.png 353k (image/png)
>>>>
>>>>
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>>
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