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[mc36 <>]

hi,

On 8/30/20 12:28 PM, Frédéric LOUI wrote:
> > finally nat did not fitted to the npu with the mpls enabled
>
> That is unfortunate  …
to be honest i really not care since most sp boxes from cisco also have no nat
because usually it's a hardware _assisted_ feature, the initial packets are
processed in the cpu to create the mapping based on higher level policies and
apply the tcp-mss for the flow and this could cause problems under ddos from 
inside...

> >   but it's insane so it'll change soon...:)
>
> How come ? Maybe we will have to rework the code base even further …
> Do you hae something in mind ?
not too much, imho we simply have too much features to fit... :)

> > at time of writing, 2 controls are missing from bfswd compare to bmv2:
> > pppoe and tunneling... so i'll proceed with these...
>
> Hope this can fit inside MPLS profile… It was the case in P4_14 switch.p4 
> but not (yet) in P4_16 switch.p4.
anyway, if i removed bridging but kept mpls then it fitted, and that's a 
suitable use case...

also the same will apply that having bridging, mpls (which then implies vpls 
and evpn) and pppoe/tunneling at the same time...

first i try to have all the features in tofino with as less combination as 
possible (for the tester to be more consistent
on it's random decision:)) but we should start thinking about sdm profiles 
with meaningful features enabled, and fits....


> I’ll look at the compiler optimisation guide and try if I get get you an 
> access ...
>
> Janios should have the organization password to open this document as KIFU is 
> aready a member …
>
> He should be aware of that as he is also on the mailing list.
ne's a bit unresponsible in this topic....:(

regards,
cs



> À bientôt,
> --  Frederic
>
>
>
>
> > Le 30 août 2020 à 11:26, mc36 <> a écrit :
> >
> > hi,
> > i would like to let you know that i just added nat to the tofino codebase...
> > regarding the tester, i updated it to support multiple images for a given 
> > test set,
> > and if more images are suitable for a given test case, one picked up one 
> > randomly...
> > finally nat did not fitted to the npu with the mpls enabled, so nat is 
> > available
> > in the srv6 and bridging flavors but it's insane so it'll change soon...:)
> > at time of writing, 2 controls are missing from bfswd compare to bmv2:
> > pppoe and tunneling... so i'll proceed with these...
> > regards,
> > cs
> >
> >
> >
> >
> > On 8/29/20 8:25 PM, mc36 wrote:
> > > hi,
> > > just added hairpin (junos logical tunnels) to the tofino codebase...
> > > next steps will probably nat, but we'll see... :)
> > > regards,
> > > cs
> > > On 8/29/20 3:25 PM, mc36 wrote:
> > > > hi,
> > > > first, i would like to announce that bridging over gre, pppoe and l2tp 
> > > > arrived to p4emu(pcap,dpdk) and bmv2...
> > > > second, please find the attached, the _fany_ outputs for the test runs...
> > > > and just would like to let you know that started backporting things to 
> > > > tofino...
> > > > regards,
> > > > cs
> > <rtrp4lang-tofino-.csv><rtrp4lang-tofino-.html>