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To: Keith Hankin who wrote (1291)1/29/1998 11:15:00 PM
From: ahhaha  Read Replies (2) | Respond to of 29970
 
The usage of higher speed goes up disproportionately with the speed. The rate of disproportionately would obsolete any DSL implementation within two years of its significant deployment and would hasten its own demise by whetting consumer appetites. HFC will eventually get there also, but it scales substantially better and at profoundly lower cost to users and deployers. The switching machinery is just a component of the higher DSL delivered cost. DSL is not a viable business option beyond campus-like implementations. As I've stated before I can't understand all the biggies jumping on this technology unless this effort is the greatest grandstanding ploy in technological history. Do you notice that there hasn't been much formal follow-up from those that are in the best position to have a conviction on this? Wouldn't they want to milk a truth for all it's worth? And why are horizons always receding? Induction from cosmological expansion?



To: Keith Hankin who wrote (1291)1/31/1998 9:58:00 PM
From: drmorgan  Read Replies (1) | Respond to of 29970
 
It was my understanding that DSL bypasses the standard switching, going to a purely digital network, and thus this would not be a problem. Is this not true?

I've got ISDN and US West will be offering DSL in my area soon. My understanding is that the conversion from ISDN to DSL will be very simple. Because of the existing ISDN infrastructure I would bet that the RBOC's can upgrade their systems with mainly DSL equipment purchases because many of the analog bottlenecks like load coils have been removed for ISDN. My understanding is that it is definatley a digital network, I would welcome a different viewpoint on that.

Derek