[c-nsp] EVPN/VXLAN on ASR9001 - BGP announcements not working

[Saku Ytti]

On Wed, 29 Apr 2020 at 18:36, Sander Steffann <sander at steffann.nl> wrote:

> Oh, the joy of ASR9k… I'm so glad we have chosen another platform.

I think this is a bit unfair, of course vendors drop support to older
platforms. And this whole problem with tomahawk and lightspeed
transition isn't exactly new news, this has been known for 5years or
so. It's a balance between being an early adopter and being supported
for many years.

I think for Gert committing on such an old platform was matter of
density, no need for 9901 density, and I think this is where vendors
need to wake up. Less dense and lower speed interface doesn't mean we
can get away with TH1 or such ASIC, we still need full-blown NPU,
large FIB, large RIB, large buffers. Vendors should release 1GE, 10GE,
100GE, 400GE optimised front-plates with latest gen NPU when ever new
NPU happens, so what if you have 1% of NPU capacity in the
front-plate, that's good problem to have, you can maybe cost optimise
bit, by accepting from fab NPU which has lot of cores broken, or book
less off-chip memory for delay buffer (less front-plate, less off-chip
memory).

Just because the new NPU can do 40x400GE, doesn't mean we don't still
have applications for 1GE optimised devices with the same features and
functions as the latest and greatest chip.

-- 
  ++ytti