[Bloat] Curious case of local "Fiber"

[Jonathan Morton]

> On 22 Jan, 2018, at 10:07 pm, Bruno George Moraes <brunogm0 at gmail.com> wrote:
> 
> My NIC is configured to only 1/1 buffers, then MTU 1492 (increased of default 1480), PPoE login  with Windows 10 using CUBIC.

I didn't know Windows supported CUBIC.  The default AFAIK is Compound TCP, if it isn't NewReno.

In any case, it looks like the bottleneck isn't at your NIC (so your settings don't matter), but at the router terminating the fibre for the whole building.  That's the best place to mitigate the bloat, since it would work for the whole building's uplinks.

 - Jonathan Morton