On: Neighbour manages to pollute the 2.4 ghz spectrum ...

[walrus01]

there is a pretty good chance that 20-30 meters of cat5e utp in a house will test successfully for 2.5GBaseT today, not that even one percent of consumers will have such a switch.

[throw0101a → walrus01]

Officially 2.5G can run up to 100m on Cate 5e:

* https://en.wikipedia.org/wiki/Ethernet_over_twisted_pair#Var...

So I wouldn't be surprised if 5GigE, and maybe even 10, could be done on shorter runs.