[Users] Bonding - VMs Network performance problem

Itamar Heim iheim at redhat.com
Tue Jul 16 12:38:10 UTC 2013


On 07/01/2013 03:12 PM, Ricardo Esteves wrote:
> Hi,
>
> Yes, i'm still experiencing this problem, in fact just happened a few
> minutes ago. :)
>
> All MTUs are 1500.

was this resolved?

>
> -----Original Message-----
> *From*: Livnat Peer <lpeer at redhat.com
> <mailto:Livnat%20Peer%20%3clpeer at redhat.com%3e>>
> *To*: Ricardo Esteves <maverick.pt at gmail.com
> <mailto:Ricardo%20Esteves%20%3cmaverick.pt at gmail.com%3e>>
> *Subject*: Re: [Users] Bonding - VMs Network performance problem
> *Date*: Sun, 23 Jun 2013 11:33:58 +0300
>
> Hi Ricardo,
> Are you still experiencing the problem described below?
> Are you configuring MTU (to something other than default or 1500) for
> one of the networks on the bond?
>
> Thanks, Livnat
>
> On 06/18/2013 05:36 PM, Ricardo Esteves wrote:
>> Good afternoon,
>>
>> Yes, the "Save network configuration" is checked, configurations are
>> persistent across boots.
>>
>> The problem is not the persistence of the configurations, the problem is
>> that after a reboot the network performance on the VMs is very bad, and
>> to fix it i need to remove the bonding and add it again.
>>
>> In attachment, the screenshots of my network configuration.
>>
>> Best regards,
>> Ricardo Esteves.
>>
>> -----Original Message-----
>> *From*: Mike Kolesnik <mkolesni at redhat.com  <mailto:mkolesni at redhat.com>
>> <mailto:Mike%20Kolesnik%20%3cmkolesni at redhat.com%3e>>
>> *To*: Ricardo Esteves <maverick.pt at gmail.com  <mailto:maverick.pt at gmail.com>
>> <mailto:Ricardo%20Esteves%20%3cmaverick.pt at gmail.com%3e>>
>> *Cc*:Users at ovirt.org  <mailto:Users at ovirt.org>  <mailto:Users at ovirt.org>
>> *Subject*: Re: [Users] Bonding - VMs Network performance problem
>> *Date*: Sun, 26 May 2013 04:57:43 -0400 (EDT)
>>
>>
>>
>> ------------------------------------------------------------------------
>>
>>
>>     Hi,
>>
>>     I've got ovirt installed on 2 HP BL460c G6 blades, and my VMs have
>>     very poor network performance (around 7,01K/s).
>>
>>     On the servers itselfs there is no problem, i can download a file
>>     with wget at around 99 M/s.
>>
>>     Then i go to ovirt network configuration remove the bonding and then
>>     make the bonding again and the problem gets fixed (i have to do this
>>     everytime i reboot my blades).
>>
>> Have you tried to check the "Save network configuration" check box, or
>> clicking the button from the host's NICs  sub-tab?
>>
>> This should persist the configuration that you set on the host across
>> reboots..
>>
>>
>>     SERVER' s Software:
>>     CentOS 6.4 (64 bits) - 2.6.32-358.6.2.el6.x86_64
>>     Ovirt EL6 official rpms.
>>
>>     Anyone experienced this kind of problems?
>>
>>     Best regards,
>>     Ricardo Esteves.
>>
>>
>>
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>>
>>
>>
>>
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>
>
>
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