On Mon, Feb 12, 2018 at 8:56 AM, Jonathan Morton <chromatix99@gmail.com> wrote:
> On 22 Jan, 2018, at 10:07 pm, Bruno George Moraes <brunogm0@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.

​Note, as always, you should locate your bottleneck.

WiFi is also highly suspect; you have terrible bloat in the upload direction, which is probably typical for a WiFi bottleneck from a device/laptop.
                                                 - Jim


 - Jonathan Morton

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