GPON vs. GEPON

Sat Jan 9 06:45:53 UTC 2016

You might be surprised...

Our upstreams want to simply bypass 40Gbps waves and want us to move
straight to 100Gbps. The cost difference is minimal.

We are set up where each customer can DVR or watch up to 6 shows at once,
per household.

There's a reason Google did 16 way splits, and yes, we have two paths we
are looking at for NG-PON2. One with Calix, another with another vendor.
On Jan 8, 2016 10:57 PM, "Baldur Norddahl" <baldur.norddahl at gmail.com>
wrote:

> We do not sell TV but that means our customers are cable cutters that do a
> ton of Netflix, HBO Nordic, ViaSat, SBS, DR TV etc streaming. Our traffic
> level per customer is about the double of what others report.
>
> VoIP is not very popular, but people do that too. In either case traffic
> levels from VoIP is so low that it is below the noise floor. When you can
> get 940 Mbit/s transfer rates with 1 ms latency and no jitter, a single 64
> Kbit/s voice stream is not going to be a problem. We point customers to
> third party SIP providers and everyone are happy with that.
>
> Do the math: a Netflix HD stream is about 5 Mbit/s. How many such stream
> can you have with 2,4 Gbit/s capacity on a GPON OLT? Yes a lot. You might
> say but every home has at least 5 TVs now, so with 64 users you need to be
> able to do 5 times 64 times 5 Mbit/s (*). But it simply does not work that
> way. We are very far from a situation where it works that way. Instead we
> monitor the traffic levels, and if sometime in the future the peak traffic
> becomes a problem, we are ready to either lower the split ratio or invest
> in the next technology (probably some kind of x*10 Gbit/s PON). Until then
> we take the cost savings of using a split ratio that works in the real
> world.
>
> (*) nobody has a backbone that can cope with that kind of traffic either.
>
> Regards,
>
> Baldur
>
>
>
> On 9 January 2016 at 05:41, Josh Reynolds <josh at kyneticwifi.com> wrote:
>
> > And you are doing 6+ stream IPTV and VoIP as well?
> > On Jan 8, 2016 9:58 PM, "Baldur Norddahl" <baldur.norddahl at gmail.com>
> > wrote:
> >
> >>
> >>
> >> On 8 January 2016 at 13:56, Josh Reynolds <josh at kyneticwifi.com> wrote:
> >>
> >>> A 8-16 way split per gpon is more reasonable. I think the current cards
> >>> are
> >>> 4-10 gpon ports per, and 2 cards per E7-2. I know they have 2x10Gbps
> LAG
> >>> working for uplink, can't remember if 4x10Gbps LAG works yet or not.
> >>>
> >>
> >> That is rubbish. We are using 128 optical splits and 64 users per OLT
> and
> >> a mix of users buying either 100 or 1000 Mbit/s service. This just
> works.
> >> The system is very far from being overloaded. We would put even more
> users
> >> on the OLT if our vendor would allow this (they only support a max of 64
> >> users per OLT).
> >>
> >> Remember the very first thing users do when you sell 1000 Mbit/s
> internet
> >> is to run a speedtest. Our users do that too and they do get the
> expected
> >> 940-950 Mbit/s (=gigabit ethernet wire speed) speedtest result at all
> time
> >> of day, also at peak usage.
> >>
> >> Regards,
> >>
> >> Baldur
> >>
> >>
> >>
> >>
> >>
> >
>