On Feb 2, 2013, at 12:07 PM, Scott Helms <[email protected]> wrote: > Owen, > > A layer 1 architecture isn't going to be an economical option for the > foreseeable future so opining on its value is a waste of time...its simple > not feasible now or even 5 years from now because of costs. The optimal open > access network (with current or near future technology) is well known. Its > called Ethernet and the methods to do triple play and open access are well > documented not to mention already in wide spread use. Trying to enforce a > layer 1 approach would be more expensive than the attempts to make this work > with Packet Over SONET or even ATM. > > What is about a normal Ethernet deployment that you see as a negative? What > problem are you tying to solve? >
Ethernet works just fine in the L1 solution I've proposed, so I'm not sure why you say it isn't economically viable to do so. Owen > > On Sat, Feb 2, 2013 at 1:04 PM, Owen DeLong <[email protected]> wrote: > > On Feb 2, 2013, at 2:19 AM, Eugen Leitl <[email protected]> wrote: > > > On Fri, Feb 01, 2013 at 04:43:56PM -0800, Leo Bicknell wrote: > > > >> The only place PON made any sense to me was extreme rural areas. > >> If you could go 20km to a splitter and then hit 32 homes ~1km away > >> (52km fiber pair length total), that was a win. If the homes are > >> 2km from the CO, 32 pair (64km fiber pair length total) of home > >> runs was cheaper than the savings on fiber, and then the cost of > >> GPON splitters and equipment. I'm trying to figure out if my assessment > >> is correct or not... > > > > Is there any specific reason why muni networks don't use 1-10 GBit > > fiber mesh, using L3 switches in DSLAMs on every street corner? > > Well, one reason is that, IMHO, the goal here is to provide a flexible > L1 platform that will allow multiple competing providers a low barrier > to entry to provide a multitude of competitive services. > > Owen > > > > > > -- > Scott Helms > Vice President of Technology > ZCorum > (678) 507-5000 > -------------------------------- > http://twitter.com/kscotthelms > --------------------------------
