[ovirt-users] oVirt management network

Lior Vernia lvernia at redhat.com
Tue Mar 31 07:11:58 EDT 2015


The situation you got to (where there are ovirtmgmt bridges over both
bond0 directly and over the bond0.231 VLAN device), likely via manual
intervention, is indeed inconsistent from oVirt's perspective.

You should be able to SSH into the host and run something like "brctl
delif ovirtmgmt bond0", then refresh capabilities on the webadmin
console and get to a situation where ovirtmgmt is configured only on top
of the VLAN device. Succeeding networking operations on the host should
then work as expected...

On 31/03/15 14:03, Bojan Popovic wrote:
> Of course.
> Here it is:
> 
> net
> 
> As you can see on the lower part of the screenshot, ovirtmgmt is on top
> of the bond0.231 interface and on top of bond0 also.
> I would like to remove bond0 from the bridge, cause it blocks every
> other operation using this dialog, whatever I try to change I'm only
> able to cancel it because I am confronted with the following:
> 
> problem
> 
> Thanks for the help.
> 
> 
> On 31.03.2015. 12:52, Lior Vernia wrote:
>> Hello Bojan,
>>
>> I'm still having difficulties understanding the exact situation. Could
>> you please click the "Refresh Capabilities" button in the hosts tab when
>> the relevant host is selected and supply a screenshot of the Setup Host
>> Networks dialog on that host afterwards. Then explain what about that
>> situation you'd like to change.
>>
>> Yours, Lior.
>>
>> On 31/03/15 12:12, Bojan Popovic wrote:
>>> I have a hosted engine. It is on the same VLAN as the hosts are, so I am
>>> not having connectivity issues. I am not going to alter that part of the
>>> setup but I do need to add more networks, and I can not because I can
>>> not save the configuration, no matter what I change it is not saved.
>>>
>>> Ovirtmgmt is vlan-tagged.
>>>
>>> Is there some config file that can be edited manually, or maybe it can
>>> be done in the database?
>>>
>>> On 30.03.2015. 13:32, Dan Kenigsberg wrote:
>>>> On Mon, Mar 30, 2015 at 12:15:09PM +0200, Bojan Popovic wrote:
>>>>> Hello, I am having a strange issue in creating ovirtmgmt bridge over
>>>>> vlan interface.
>>>>>
>>>>> I have set-up a bond from physical interfaces. On top of a bond there
>>>>> are three VLANs one of which is in ovirtmgmt bridge. I have set it up
>>>>> manually according to http://www.ovirt.org/Bonding_VLAN_Bridge
>>>>>
>>>>> Somehow the bond itself is also added to bridge in oVirt web interface,
>>>>> after reboot there also were two added lines to configuration of that bond:
>>>>> # Generated by VDSM version 4.16.10-8.gitc937927.el7
>>>>> BRIDGE=ovirtmgmt
>>>>>
>>>>> No matter how I try to remove the bond from the bridge it doesn't
>>>>> succeed. If I edit the config files manually it isn't replicated to web
>>>>> interface. If I try to detach it from web interface, I can only attach
>>>>> bridge back to the bond interface. Of course configuration cannot be
>>>>> saved until the bridge is attached to an interface.
>>>>>
>>>>> I have tried putting the host in maintenance mode, shutting down the
>>>>> hosted engine and doing all the changes live.
>>>>>
>>>>> Anyone has a suggestion how to resolve this?
>>>> I'd first like to understand how you intend for management traffic to
>>>> travel from your Engine to the host. Do you have a vlan connection
>>>> between the two? What is the host's IP address on that vlan?
>>>>
>>>> Since you have connectivity to the host, we can tell that you have
>>>> un-tagged traffic to the host. In most (sane) cases, the IP address on
>>>> the untagged network is different from the vlan'ed one. To use the
>>>> latter, you'd need to remove the host from the cluster, and add it back
>>>> with its second address.
>>>>
>>>> Did you define ovirtmgmt as a vlan-tagged network? Or do you intend to
>>>> have a special hack for this host?
>>>>
>>>> Regards,
>>>> Dan.
>>> _______________________________________________
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>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
> 


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