[c-nsp] Cisco N540-ACC-SYS ipv4 routes

[Saku Ytti]

On Mon, 13 Jul 2020 at 12:42, <adamv0025 at netconsultings.com> wrote:

> On J2 you can pretty much enable all the bells and whistles you can and
> still get the same pps rate out of it as with no features enabled.

I don't think this is strictly true, maybe it's true for several
cases. But even without recirculation, I think you can take variable
time through J2 and if you wanted, you could make it perform
pathologically poor, it is flexible enough for that. You can do a lot
of stuff on the lookup pipeline for the first 144B in J2. Then there
is the programmable elements matrix for future functions, can I put
every frame there with no cost? You can use system headers to skip
devices inside the pipeline.
It's hard for me to imagine with all this flexibility we'd still
always guarantee constant time.

J2 is much more flexible than what J1 was. But of course it's still
very much a pipeline of different types of silicons, some more some
less programmable. So I don't know.

-- 
  ++ytti