[Sephiroth]

I've been on 4 upstream channels for nearly a year. 3 are on 64QAM and one still on 16QAM. VM were intending that customers should have upstream at 10% of downstream. To do that, they would need to add upstream capacity, hence 4 channels. But I'm still on 200/12 so I don't know where VM are with that.

Incidentally, if one channel is on 16QAM then that will drag the overall upstream capacity down. 16QAM has 4 bits per symbol & 64QAM has 6 bits per symbol. But because a data packet is split across all the upstream channels, it can only be reassembled at the bit density rate of the slowest channel.