[ovs-discuss] Is there any document about nicira externtion

Numan Siddique nusiddiq at redhat.com
Tue Aug 20 07:37:04 UTC 2019

On Tue, Aug 20, 2019 at 7:35 AM kai xi fan <kaixi.f at gmail.com> wrote:

> I am writing a controller to control ovs through openflow protocol.
> I found that  when I dump flows from ovs using ovs-ofctl. It shows me so
> many fields prefixed with "NXM".
> And we plan to use "nxm packet_in_2" format. It also needs nicira
> extensions.
> So if the controller wants to communicate with ovs using openflow 1.3, I
> have to deal with nicira extensions.
> But I could not found any document about its format and the corresponding
> openflow message format.
> Could any one help me ?

I think you can find useful information here -


> thanks.
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