Re: Self check
I wonder what the hell that means. I thought FTTP was symmetrical. Shows how much I know.
FTTP can be symmetrical but BT have chosen to limit the upload, probably to try and protect their leased line business.
Most flavours of DSL can also be symmetric but are rarely implemented as such. Most use cases don't call for it and mixing frequency plans can cause crosstalk issues. So most xDSL implementations stick to the common use case of asymmetric bandwidth.