GPON vs. GEPON

Wed Jan 6 13:57:12 UTC 2016

If you take out "bitrate, split ratio, cross vendor compatibility and
purchase price differences" then what else would you like to compare or
know? Those would be the major differences I would say. We only deploy GPON
here. I would say in a system like GEPON or GPON where a port is shared
between users more bandwidth is better, and GPON has more capacity than
GEPON. I am not sure which region you are in, but in the USA GEPON is
almost non-existent from the larger players. Meaning that most GEPON
equipment won't be ANSI certified, and might not have FFC certs.

Huawei used to have a couple of slides.

I looked on some other list and found the following:

We considered EPON, and there are some inexpensive solutions from off shore
that are worth considering.

In the end, we went for GPON for two reasons:

One, you can deliver a true 1Gbps service where more than one customer on a
PON segment can actually get 1Gbps at a time, because the GPON supports
2.4Gbps of total usage on the segment.

Two we like our current vendor, Adtran, and we wanted to put OLT cards into
the same chassis and manage them using the same systems. The cost premium
versus a new vendor for EPON wasn't huge. The CPE is the bigger cost, and
we didn't see a real cost difference between EPON ONT and GPON ONT.

In the end, the price difference for GPON versus EPON wasn't great - and
while GPON is a bit "designed by committee" and there are some valid
criticisms there, they're academic in light of the other factors.

On Tue, Jan 5, 2016 at 3:00 PM, <nanog-isp at mail.com> wrote:

> Hello all,
>
> For those of you with optical last mile networks that are familiar with
> both GPON and GEPON, would you mind sharing experiences of the differences
> between GPON and GEPON, especially from an operative perspective?
>
> For arguments sake let's assume bitrate, split ratio, cross vendor
> compatibility and purchase price differences aren't of major interest.
>
> Thanks,
>
> Jared
>