DoomlordVekk: Don, ignoring upstream rateshaping, a DOCSIS 2 channel running 3.2MHz wide at 32QAM is good for about 10Mb of real world bandwidth
ya, sorry, I wasn't aware they did 15/4 plans in the business space, but I was wanting to tease out that he's on a different service profile to the rest of us.
iiNet used to do this a decade ago on their dial up network. They'd just drop heavy users into a different IP pool and allocate them a different uplink capacity so it didn't impact the rest of us.
Interestingly, I wonder if different plan users should also have been grouped into different networks to ensure QOS that represents their spend in this free space. I think the ppl who commented they're paying for 60Gb plans v's those paying for 2Gb plans are getting the same value now.
http://en.wikipedia.org/wiki/DOCSIS
The table, half way down, shows that the node upstream can run at up to 30mbit (I assume that's layer 2) and we know from local knowledge that you need to have roughly double the head room for concurrent bursting by users, so there's really little reason why they couldn't run 15/15 plans is there?