It is a pity that VM don't show the same kind of openness that Comcast have recently:
Quote:
Today, Comcast has approximately 3300 CMTSes deployed throughout our network, serving our 14.4 million HSI subscribers.
Each CMTS has multiple “ports” that handle traffic coming into and leaving the CMTS.
In particular, each cable modem deployed on the Comcast HSI network is connected to the CMTS through the ports on the CMTS. These ports can be either “downstream” ports or “upstream” ports, depending on whether they send information to cable modems (downstream) or receive information from cable modems (upstream) attached to the port.
Today, on average, about 275 cable modems share the same downstream port and about 100 cable modems share the same upstream port.
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OK So it's a nerdy interest but would be interesting to see VM's numbers. You can get contention ratios from this stuff.
38Mbit / 275 subs = 138.2kbit/s downstream each and 12.9 / 100 = 129kbit/s upstream each. Upstream figure is a guesstimate but should be about right considering Comcast have deployed a fair bit of DOCSIS 2 upstream action at 3.2MHz / 64QAM.
Based around a standard tier of 6Mbit down and 2Mbit up gives contention of 44:1 downstream and 15.5:1 upstream