Introduction
We are in 2020. Gigabit Ethernet
[https://en.wikipedia.org/wiki/Gigabit_Ethernet], 1Gbps, is 20 years old (2000).
In France, you can apply Internet Services (ISP) up to 8Gbps. At the moment
(begining of 2020) only one ISP in France allows you to get over >1Gbps, but