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

kai xi fan kaixi.f at gmail.com
Tue Aug 20 10:45:21 UTC 2019

I have read the following file.

But it's too simple to understand. For example, nicira extension use
properties in "nxm packet_in_2" packet in format. But there is no such
openflow message format in detail.
I have to tcpdump the openflow packet to understand it.
May be there is a official document about this ?

Numan Siddique <nusiddiq at redhat.com> 于2019年8月20日周二 下午3:37写道:

> 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 -
> https://github.com/openvswitch/ovs/blob/master/include/openflow/nicira-ext.h
> Thanks
> Numan
>> thanks.
>> _______________________________________________
>> discuss mailing list
>> discuss at openvswitch.org
>> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
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