[CentOS-virt] proper bridging technoque

[aurfalien]

On Nov 20, 2013, at 4:47 PM, Digimer wrote:

> On 20/11/13 19:47, aurfalien wrote:
>> 
>> On Nov 20, 2013, at 4:44 PM, Digimer wrote:
>> 
>>> On 20/11/13 19:25, aurfalien wrote:
>>>> 
>>>> On Nov 20, 2013, at 4:13 PM, Digimer wrote:
>>>> 
>>>>> On 20/11/13 19:04, aurfalien wrote:
>>>>>> Hi,
>>>>>> 
>>>>>> Wondering if this is the proper bridging technique to use for Centos6+KVM;
>>>>>> 
>>>>>> http://wiki.centos.org/HowTos/KVM
>>>>>> 
>>>>>> Before I embark on this again, I would like to do it by the book.
>>>>>> 
>>>>>> Thanks in advance,
>>>>>> 
>>>>>> - aurf
>>>>> 
>>>>> Personally, I do this:
>>>>> 
>>>>> https://alteeve.ca/w/2-Node_Red_Hat_KVM_Cluster_Tutorial#Configuring_The_Bridge
>>>>> 
>>>>> It gives the VMs direct access to the outside network, as if they were
>>>>> normal servers. I've used this setup for years without issue under many
>>>>> different VMs with various OSes.
>>>>> 
>>>>> cheers
>>>> 
>>>> Many many thanks, will use it.
>>>> 
>>>> Sounds like it will bode well concerning jumbo frames.
>>>> 
>>>> - aurf
>>> 
>>> Jumbo frames should be fine. I don't generally use it myself, but I have
>>> tested it with success. Just be sure to enable it on the bridge and
>>> slaved devices. Simply adding 'MTU="xxxx"' to each ifcfg-x file should
>>> be sufficient.
>>> 
>>> -- 
>>> Digimer

Man, really sorry to bug as this seems begnin as I've done this numerous time but on non bridged ints.

When I add MTU=9000 to the bridged int, I get;

RNETLINK answers invalid argument 

My phys int is showing jumbo but the bridged int is showing standard.



- aurf