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To: Herc who wrote (3740)	5/16/1999 11:51:00 PM
From: Bernard Levy	Read Replies (1) \| Respond to of 12823

You can do a simple back of the envelope computation. A single 6 MHz channel can carry about 40Mb/sec in the downstream direction. This amounts to what VDSL can offer to a single user. While 40Mb/saec represents a huge amount of BW today, I expect it represents approximately what each household will require 10 years from now. So cable companies have better subdivide neighborhood clusters as well as push the envelope as far as possible in extending the usable frequency range of the cable plant. Another factor that cable proponents need to address is reliability. Cable service remains extremely unreliable when compared to phone service (I will spare you personal anecdotes). Is this an unavoidable consequence of the fact that the local cable plant is a shared medium, or can this state of affairs be improved by the disciplined approach that T will bring to managing the cable plant? Best regards, Bernard Levy