On 21/11/13 17:32, aurfalien wrote:
>
> On Nov 21, 2013, at 2:24 PM, Digimer wrote:
>
>> I'm not sure what you are asking.
>>
>> You should not see the vnetX devices from the VM (or even the VM's
>> definition file). They're created as needed to link the VM's interface
>> to the bridge. Think of them as simple network cables.
>>
>> Some of the formatting isn't showing well on my mail client (text only),
>> so I am having a little trouble parsing some of the data...
>>
>> If the VMs are using br6, then you see that it's already at 9000, so you
>> should be able to use 9000 from inside the VM as well. Trick is, the
>> vnetX devices are connected to the br0 bridge instead, which is set to
>> 1500 because eth0 is still 1500. So at this point, the VMs are
>> traversing br0, not br6.
>>
>> As for 'virbr0', that is libvirtd's default NAT'ed bridge. I don't
>> recommend using those. I usually destroy them, personally.
>>
>> So to fix your problem, you need to tell the VMs to use br6. If you want
>> to use jumbo frames on br0, you need to increase the MTU of eth0.
>> Remember that the bridge will use the MTU of the lowest connected device.
>
> So far my current VMs that work, I see there network as;
>
> Host device vnet 0 (Bridge 'br0')
>
> I do not see a;
>
> Host device vnet# (Bridge 'br6')
>
> My ints of interest are set to jumbo so thats not a prob. I think the prob is that I am missing the vnet bridge device for eth6.
>
> So I'm curious why its not there and how do I create it?
>
> - aurf
I can't speak to the tools you are using, but I can say that this is
where the bridge is defined in the VM's XML definition file:
====
[root@an-c05n01 ~]# cat /shared/definitions/vm01-win2008.xml |grep vbr
-B 2 -A 5
<interface type='bridge'>
<mac address='52:54:00:8e:67:32'/>
<source bridge='vbr2'/>
<target dev='vnet0'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
====
Try changing: <source bridge='br0'/> -> <source bridge='br6'/> and
restart the VM.
--
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?
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