I think Chuck Hogg said he's doing 4:1's near customers and feeding
those with 8:1's at the cabinet. 4:1 means you can deliver 600Mbps to
each customer if you eventually back off the cabinet splitter to zero.
That's more than enough bandwidth for a typical customer. If you have
any businesses, give them a dedicated strand and do BiDi AE.
We're in the cost analysis stage for a project and it *will* be GPON.
It's a remote area and 300+ ports of active would be ridiculous and way,
way overkill.
On 2/12/2016 9:47 PM, Josh Reynolds wrote:
If you're doing a super small project, no more than a hundred or two
hundred customers in an area, then it can make sense. There comes to
be a point where the port cost of active does NOT scale.
1024 subs on GPON with a modest 32 way split is done with 32 GPON
SFPs, 32 ports, 32 way split per GPON SFP. 2 line cards in a 2U
chassis.
On active, that's 1024 active ports and SFPs. That's insane.
On Fri, Feb 12, 2016 at 9:44 PM, Chris Fabien <ch...@lakenetmi.com> wrote:
I am also a proponent of active. Especially for small projects like this.
Very low cost of entry.
We looked at gpon including Alphion and ended up with still needing all the
strands home run to the cabinet to fully load up each PON or we ended up
with a bunch of money wasted on PONs that would never be fully utilized if
we did splitting closer to the customer.
On Feb 12, 2016 10:30 PM, "Andreas Wiatowski" <andr...@silowireless.com>
wrote:
So, I understand the benefits of GPon ... What brand would you consider?
... I have been looking at Alphion. Huawei seems like a good option... But
much more expensive.
Cheers,
______________________________
Andreas Wiatowski | CEO
Silo Wireless Inc.
Email andr...@silowireless.com
19 Sage Court
Brantford, Ontario N3R 7T4 (CANADA)
Tel +1.519.449.5656 Extension-600|Fax +1.519.449.5536 |Toll Free
+1.866.727.4138
-------- Original message --------
From: Josh Reynolds <j...@kyneticwifi.com>
Date: 2016-02-12 10:21 PM (GMT-05:00)
To: af@afmug.com
Subject: Re: [AFMUG] Active or GPon?
You realize the transport core to the gpon OLT chassis is still active
fiber in many designs, right? I also am unsure if you are aware of the
upgrade process to NG-PON2 - you can run it on the same fiber strand as your
existing PON split. Add the new card into the chassis and move the split
over to the new SFP. Upgrade the customers at your leisure.
On Feb 12, 2016 9:13 PM, "Eric Kuhnke" <eric.kuh...@gmail.com> wrote:
Key part there is, is going to be... is it available or shipping now?
If somebody wants to start a build now, the choice is between GPON or
active.
Having an active fiber path, even with just one strand (for BiDi optics)
gives you a nearly infinite lifespan of the installed light path and cable
plant, if things are maintained correctly. With a dedicated light path from
each powered network node to the customer you could upgrade to active-E 10,
then 40, then 100Gbps someday. Yes we will see customers with 10GbE optics
in the next ten years. And maybe in 20 or 30 years from now it'll be cheap
and easy to connect each customer with an SFP-sized coherent QPSK 100GbE
optic at each end.
On Fri, Feb 12, 2016 at 7:08 PM, Josh Reynolds <j...@kyneticwifi.com>
wrote:
10-40Gbps on NG-PON2 is going to be the real deal, and betting against
it vs active ethernet at scale for residential service is just...
dumb, to be honest (IMO).
The size of your backbone ends up being monstrous with active, as well
as having to keep the cabinets powered, UPS+batteries, enclosurers
maintained, etc. PON is simply so much cheaper are scale, and in
residential every dollar counts.
On Fri, Feb 12, 2016 at 8:56 PM, Eric Kuhnke <eric.kuh...@gmail.com>
wrote:
I did forget to mention that I'm firmly on the side of activeE being
the
best choice, for one big reason... You can use all kinds of SFP-based
equipment (24/48-port 1U switches) or chassis based switches and
routers
with 24/48-port blades from a huge variety of manufacturers.
There's a lot of 48-port SFP stuff out there on the grey/refurb/used
market
that came out of datacenters, and no longer meets the bandwidth needs
for
people who are doing 10GbE (or 2x10GbE) to each bare metal hypervisor.
But
that same equipment is perfect for activeE.
Same idea as a Cisco 3750G-48 is no longer enough bandwidth for
1000BaseT to
the server in colo environments, but is perfect for MDU use.
GPON/EPON/whateverPON is all a mess of manufacturer proprietary CPEs
and
non-interoperable stuff. Whereas with activeE and a real ethernet port
for
each customer you can use $30 media converters as your demarc.
On Fri, Feb 12, 2016 at 4:53 PM, Andreas Wiatowski
<andr...@silowireless.com> wrote:
Hi all,
Looking to do my first ftth for about 110 homes.
If I do active, what switch platform would you use for sfp in
cabinet and
in home router/cabinet.
If GPon, what vendor would you choose that is cost
effective/reliable
I understand the full limitations of GPon.. But I feel it is an
attractive
proposition compared to active... And the few systems I have seen
have a
road map to faster olt access.
Cheers,
______________________________
Andreas Wiatowski | CEO
Silo Wireless Inc.
Email andr...@silowireless.com
19 Sage Court
Brantford, Ontario N3R 7T4 (CANADA)
Tel +1.519.449.5656 Extension-600|Fax +1.519.449.5536 |Toll Free
+1.866.727.4138
