2012/3/23 Masataka Ohta <mo...@necom830.hpcl.titech.ac.jp>: > Jared Mauch wrote: > >> It is already a monopoly. Most places are served by one of >> the utilities: power, telephony or cable. He that controls >> the outside plant controls your fate. > > The difference is in how the services can be unbundled. > > Power is additive (if in phase) that network topology is > irrelevant. > > For telephony, unbundling for DSL at L1 is just fine. > > So is optical fiber if single star topology is used. > > WDM PON can still be unbundled at L1. > > However, with time slotted PON, unbundling must be > at L2, which is as expensive as L3, which means > there effectively is no unbundling.
I strongly disagree. If this were true, there would be no market for MPLS service: folks would simply buy Internet service and run VPNs. If you take my packets off at the first hop and deliver them to a 3rd party provider, I can buy service from that 3rd party with as many IP addresses as I want, I can buy service with BGP routing, I can buy non-Internet services and I can buy bandwidth-hungry services that aren't cost effective when they take a trip through the Internet backbone. Even if the cost for the unbundled L2 circuit was *identical* to the cost of the bundled Internet circuit it would enable a huge range of niche products that aren't practical now. Regards, Bill Herrin -- William D. Herrin ................ her...@dirtside.com b...@herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
