Muni fiber: L1 or L2?

Jason Baugher jason at thebaughers.com
Tue Feb 12 21:15:02 UTC 2013


Scott, I've been down this road with Masataka. over the last few days. I
gave up.


On Tue, Feb 12, 2013 at 2:59 PM, Scott Helms <khelms at zcorum.com> wrote:

> On Tue, Feb 12, 2013 at 3:47 PM, Masataka Ohta <
> mohta at necom830.hpcl.titech.ac.jp> wrote:
>
> > Scott Helms wrote:
> >
> > > Numbers?  Examples?
> >
> > Greenfield SS and PON deployment costs in Japan was already shown.
> >
>
> Japan has one of the highest population densities of major economies in the
> world with an average density of 873 per square mile.  The US on the other
> hand has 89 per square mile.  Canada has an average density of 10 people
> per square mile.  I would also say that Japan's consumer behavior and
> regulatory climate are all significantly different from the North American
> market so making blanket statements is pretty silly.
>
> If you want to make your case then why don't you, the only Japanese &
> English speaker on this list I know of, extract the math behind the NTT
> papers and present why its cheaper in Japan and we can then see if that
> applies equally in the US & Canada.
>
> >
> > > This is simply incorrect in many places.  The only
> > > reasons to run PON are financial, since Ethernet out performs it,
> >
> > No, the only reason to insist on PON is to make L1 unbundling
> > not feasible.
> >
>
> I don't know what conspiracy theory you're ascribing to here, but this is
> incorrect.
>
> >
> > > are you
> > > saying that all greenfield PON installs are cheaper done as Ethernet
> > > without exception?
> >
> > No, SS is cheaper than PON without exception.
> >
>
> Prove it.
>
>
> >
> > If the initial density of subscribers is high, SS is fine.
> >
> > If it is not, initially, most electric equipment, OE port,
> > fibers, splitters and a large closures containing the splitters
> > of PON can not be shared by two or more subscribers, which means
> > PON incurs much more material and labor cost for each initial
> > subscriber than SS.
> >
> >                                         Masataka Ohta
> >
>
>
>
> --
> Scott Helms
> Vice President of Technology
> ZCorum
> (678) 507-5000
> --------------------------------
> http://twitter.com/kscotthelms
> --------------------------------
>



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