Another good point, and yes, if the local carrier elects to use VDSL, say, at rates above 12 Mb/s, or even ADSL at up to 8 Mb/s then they can partition the bandwidth to support multiple "sessions" per home. Possibly at some sacrifice in what was previously enjoyed, in performance, for the other applications.
But this would, in many cases, require moving the fiber presence (the node) closer to the home, which is something your earlier message implies the PTTs are loathed to do, while favoring only using what they have in the ground now. Namely, copper.
Let's say they did put a passive optical network (PON) in place, using fiber to the neighborhood and VDSL to the home. In doing so, I'm not sure if it's quite the no-brainer that I'm making it out to be to do virtual connections via ATM (partitioning on the pipe) without the inclusion of yet another platform for multi-service delivery. Although, through IP over ATM I suppose that it'd work. Maybe it is doable in the present state of affairs, but I'm not aware of how it would be done, specifically, with mediation products that are being used today.
On second thought, there are some enhanced service provider and ISP front end products that do edge and access administration that could probably be called in, come to think of it... maybe someone else could step in here and splain? |
