[openstack-dev] [Neutron] OVS Agent and OF bridges

Kyle Mestery (kmestery) kmestery at cisco.com
Fri Aug 2 13:30:04 UTC 2013


On Aug 2, 2013, at 7:02 AM, Addepalli Srini-B22160 <B22160 at freescale.com> wrote:
> 
> Hi,
>  
> As I understand,  current OVS Quantum agent is assuming that there are two Openflow bridges (br-int and br-tun).
>  
> “br_tun”, I think, is introduced to take care of overlay tunnels.
>  
> With flow based tunnel selection and tunnel parameters definition,  I think br-tun is no longer required.
>  
> Removal of br-tun increases the performance as one less OF bridge in the packet path.
>  
> Is there any interest in community to remove br-tun?  If so, we can work on it and provide a blue print and the code.
>  
> Thanks
> Srini
>  
Hi Srini:

I am very interested in this, and I think this would be a nice performance improvement. We'd have to maintain backwards compatibility with the existing code, since only version of OVS >= 1.10 have flow-based tunneling code. If you want, I'd be happy to review your BP and code for this, or even work with you on this.

Thanks,
Kyle

>  
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>  
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