[ovs-discuss] Install Flow Rule directly into the kernel module

Sascha Bleidner sascha.bleidner at stud.tu-darmstadt.de
Wed Mar 11 08:30:22 UTC 2015

Thanks, I will also look into the newer version. 
So there is no option to force the switch to install flow mods coming from a controller to be installed in the kernel, since my test program runs on the controller. 

Otherwise I would need to write a bash script instead. 

Kind Regards,

> Am 10.03.2015 um 23:07 schrieb Ben Pfaff <blp at nicira.com>:
> On Tue, Mar 10, 2015 at 09:38:51PM +0100, Sascha Bleidner wrote:
>> I am using OVS 2.0.1 inside a mininet emulation testbed. Since I am
>> focusing on performance related questions, I was wondering if there
>> is a way to force the OVS to directly install a flow rule send along
>> with a flow mod message from the controller directly into the kernel
>> instead of just storing it into the user space until a matching
>> packet arrives at the switch. I am using the Ryu Framework
>> (https://github.com/osrg/ryu) as a controller.
> You probably shouldn't do that.  If you still want to, you can use
> "ovs-dpctl add-flow".
> Since you're focusing on performance, you should probably upgrade to
> OVS 2.3 or, better yet, a recent snapshot of "master".

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