Muni fiber: L1 or L2?
owen at delong.com
Thu Jan 31 23:28:55 UTC 2013
On Jan 31, 2013, at 13:57 , Fletcher Kittredge <fkittred at gwi.net> wrote:
> On Thu, Jan 31, 2013 at 4:36 PM, Owen DeLong <owen at delong.com> wrote:
> If you have an MMR where all of the customers come together, then you
> can cross-connect all of $PROVIDER_1's customers to a splitter provided
> by $PROVIDER_1 and cross connect all of $PROVIDER_2's customers to
> a splitter provided by $PROVIDER_2, etc.
> If the splitter is out in the neighborhood, then $PROVIDER_1 and $PROVIDER_2
> and... all need to build out to every neighborhood.
> If you have the splitter next to the PON gear instead of next to the subscribers,
> then you remove the relevance of the inability to connect a splitter to multiple
> OLTs. The splitter becomes the provider interface to the open fiber plant
> Interesting. Do you then lose the cost advantage because you need home run fiber back to the MMR? Do you have examples of plants built with this architecture (I know of one such plant, but I am hoping you will turn up more examples.)
I don't know of any. Yes, it would eliminate part of the theoretical cost savings of the PON architecture, but the point is that it would provide a technology agnostic last mile infrastructure that could easily be used by multiple competing providers and would not prevent a provider from using PON if they chose to do so for other reasons.
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