On Fri, Jan 23, 1998 at 02:23:19AM -0500, Deepak Jain wrote:
UUNET doesn't own dedicated single-circuit copper to people's houses.
If xDSL can only run about 18kft end-to-end, to service a wide metro area like Washington, D.C. one would either have to have a POP within every 6 mile radius (fed by conventional circuits) or backhaul the data (by conventional circuit) to their POP.
Is this correct, if not, what am I missing?
That's correct. DSL is a baseband technology, running over copper. Read: layer 1. The only practical place to put DSL headends right now is in RBOC CO's. No one else has the point to point copper -- it's not a multiplexed layer 1 service like cablemodems. Oh, and sorry, backhauling isn't an issue. The DSL modem at the opposite end of the line from the customer _has to physically be there_. Once you grab the signal and turn it into some other layer 1 format, you can mux it and back haul it, but that doesn't solve the problem at hand. Cheers, -- j -- Jay R. Ashworth jra@baylink.com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "Two words: Darth Doogie." -- Jason Colby, Tampa Bay, Florida on alt.fan.heinlein +1 813 790 7592