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Date:      Fri, 10 Jul 2015 17:13:11 -0300
From:      Eduardo Meyer <dudu.meyer@gmail.com>
To:        Luigi Rizzo <rizzo@iet.unipi.it>
Cc:        Pavel Odintsov <pavel.odintsov@gmail.com>,  "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject:   Re: netmap-ipfw: kipfw two instances sharing same port
Message-ID:  <CAEqdE_7D1h29i3KaD%2BgNZgTptEr-EekHQ_w6i778aQXrcSKO6Q@mail.gmail.com>
In-Reply-To: <CA%2BhQ2%2Bjo1J52E=K_yT0-KO4_zbm-7MnEhvzghchifri8t7RuBA@mail.gmail.com>
References:  <CAEqdE_6EEwyMur161KpKqas_gcJb2mnn-Zb_q65%2BObbJD2oePw@mail.gmail.com> <CALgsdbdTxc7T-hxd4LjO940d0RSHW7ttPQ%2BdfBwOGC=FYKow%2Bw@mail.gmail.com> <CAEqdE_4tkzuzdWSS=kHCzJF7yo=-1FxhijjeN2dUVc7fLHuYOg@mail.gmail.com> <CA%2BhQ2%2Bh5i5-B6D7fcv1sB-cCNfbu3ije7Ga6W7TO=Qat1MCGKQ@mail.gmail.com> <CAEqdE_7cE7VBzRaXwtLod=KmsAvJudSyR--Dn5zhay_19OwGPA@mail.gmail.com> <CA%2BhQ2%2Bjo1J52E=K_yT0-KO4_zbm-7MnEhvzghchifri8t7RuBA@mail.gmail.com>

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On Fri, Jul 10, 2015 at 5:03 PM, Luigi Rizzo <rizzo@iet.unipi.it> wrote:

>
>
> On Fri, Jul 10, 2015 at 9:58 PM, Eduardo Meyer <dudu.meyer@gmail.com>
> wrote:
>
>> On Fri, Jul 10, 2015 at 4:15 PM, Luigi Rizzo <rizzo@iet.unipi.it> wrote:
>>
>>>
>>>
>>> On Fri, Jul 10, 2015 at 9:14 PM, Eduardo Meyer <dudu.meyer@gmail.com>
>>> wrote:
>>>
>>>> On Fri, Jul 10, 2015 at 4:09 PM, Pavel Odintsov <
>>>> pavel.odintsov@gmail.com>
>>>> wrote:
>>>>
>>>> > Hello!
>>>> >
>>>> > You could enable multiple queues for each NIC and run single instanc=
e
>>>> of
>>>> > kipfw on each pair:
>>>> > kipfw netmap:ix0-0 netmap:ix1-0
>>>> > kipfw netmap:ix0-1 netmap:ix1-1
>>>> >
>>>> > And so on ;) i have about 12 mpps with this configuration (on Linux
>>>> > netmap).
>>>> >
>>>>
>>>> Wow cool hint and cool numbers.
>>>>
>>>> I will get everything properly bridged on both kipfw instances, right?
>>>>
>>>> I need to simulate like a 3-port bridge... this would me more like
>>>>
>>>> kipfw netmap:ix0-0 netmap:ix1-0
>>>> kipfw netmap:ix0-1 netmap:ix2-0
>>>>
>>>> But I need the same traffic coming on the wire on ix0 to be available =
on
>>>> both ix1 and ix2.
>>>>
>>>
>>> =E2=80=8Bit won't replicate traffic on the other two ports,
>>> that's a different logic.
>>>
>>> cheers
>>> luigi
>>>
>>
>> yeah it's what I thought,
>> different queues, different packets
>>
>> what about the first approach? should I expect issues?
>>
>> kipfw netmap:ix0 netmap:ix1
>> kipfw netmap:ix0 netmap:ix2
>>
>
> =E2=80=8Bit won't do what anything sensible:
> processes will compete for packets randomly
> passing them to one or the other port.
>
> =E2=80=8Bcheers
> luigi=E2=80=8B
>
>
Ok so it's a no-go for what I need, I would need to hack into kipfw to have
a 3-port filtered bridge it looks like. And i don't believe there's
existing code to find out which traffic should go to which port, so it's a
whole new thing to code right?

Thank you.

--=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Eduardo Meyer
pessoal: dudu.meyer@gmail.com
profissional: ddm.farmaciap@saude.gov.br



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