SQM / Cake Link Layer Adaptation

[fantom-x]

@moeller0

FTTP is really ethernet at 38, maybe we should say 42 or even 48, and if the VDSL is really 22 but PPPoE is pretty common, maybe we should say 34 like fantom-x has?

I have avoided going that route as I have no reliable information about the prevalence of the different encapsulation schemes for the different technologies.

Maybe also a more user friendly table with ISP name, technology name, and the overhead value? I think I saw throubleshooting exercise repeated multiple time for the same providers on this forum.