Muni fiber: L1 or L2?

Fri Feb 1 22:49:43 UTC 2013

Fletcher:

Many rural LECs are homerunning their fiber back to the CO, such that the
optical splitters are only in the CO.  It gives them one management point,
the highest possible efficiency (you can maximize any every splitter and
therefore PON) and a pathway to ActiveE.

Frank

-----Original Message-----
From: Fletcher Kittredge [mailto:fkittred at gwi.net] 
Sent: Thursday, January 31, 2013 3:58 PM
To: Owen DeLong
Cc: NANOG
Subject: Re: Muni fiber: L1 or L2?

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

Owen;

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.)

regards,
Fletcher
-- 
Fletcher Kittredge
GWI
8 Pomerleau Street
Biddeford, ME 04005-9457
207-602-1134