[ovs-discuss] OVN SFC: Changes to include ACL based classifiers

Flaviof flavio at flaviof.com
Tue Nov 1 13:53:38 UTC 2016


On Tue, Nov 1, 2016 at 8:55 AM, Russell Bryant <russell at ovn.org> wrote:

>
>
> On Tue, Nov 1, 2016 at 11:09 AM, Flaviof <flavio at flaviof.com> wrote:
>
>> [cc: John, Louis, Farhad, Russell]
>>
>> Hi folks,
>>
>> Picking up from where we left off at the summit [1], I took
>> a stab at the nb schema changes to represent what I
>> understood Russell and others saying on how we could
>> use a secondary table of ACLs to serve as the SFC
>> classifiers: [2].
>>
>
> What I had in mind was proceeding with a proposal like this one where we
> change ACLs to have multiple stages.  This patch proposed two, but I think
> we later talked about extending it to have more (8 perhaps?).
>
> http://openvswitch.org/pipermail/dev/2016-July/076674.html
>
> Then if SFC was an ACL action, you could put it in any stage of ACLs you
> want, with other things before or after as desired.
>


I see. I like that! Let me better understand the code changes from that
email.

Thanks,

-- flaviof


>
> Does it look right to you? If so, I will start making the
>> changes to incorporate that and obsolete the classifier based
>> code [3]. I'm not sure if I will be able to migrate to this new
>> table in time for the talk at OVSCon [4], but I will try.
>>
>> Thanks,
>>
>> -- flaviof
>>
>> [1]: https://etherpad.openstack.org/p/r.f7cebb215b63ae657d91a28ab0da42bf
>> <https://etherpad.openstack.org/p/networking-ovn-ocata-summit>
>>
>> [2]: https://github.com/doonhammer/ovs/pull/3/commits/b10224
>> a07de2970358eb5e105146ef1d5f5eca6d
>>
>> [3]: https://github.com/doonhammer/ovs/pull/3/commits/2ebea7
>> 881c523dd356cd043a24531c268bddf6b4#diff-2c35162acf6ad1446249
>> 54fdc4c3d9f4R2505
>>
>> [4]: http://sched.co/8aZE
>>
>>
>>
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>>
>>
>
>
> --
> Russell Bryant
>
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