I started with active because I didn't have to learn anything new.
Ethernet is simple, and on a small scale ethernet is cheap.
You definitely hit a threshold where PON becomes cheaper. Depends on
the brand of PON, but somewhere beyond a couple hundred units.
------ Original Message ------
From: "Jason McKemie" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: 8/1/2017 12:03:35 PM
Subject: Re: [AFMUG] UBNT OLT Transition from Active Ethernet to GPON
I'm only doing active at the moment.
On Tuesday, August 1, 2017, Chuck Hogg <[email protected]> wrote:
I'm surprised you are bothering with UBNT when a platform like ZTE is
significantly more stable. Cheaper too.
On Mon, Jul 31, 2017 at 6:35 PM Jason McKemie
<[email protected]> wrote:
The Calix active stuff is $$$$$ though, especially when you do the
CSFP modules. Something like the Ignitenet Fusionswitch fiber and
Fiberstore bidi SFPs is much more reasonable. I can sacrifice 1RU
per 24 customers for that kind of price difference.
On Mon, Jul 31, 2017 at 4:06 PM, George Skorup
<[email protected]> wrote:
If I were you, I would take a serious look at GPON shelves like ZTE
and Calix. CSFP modules let you put two BiDi AE customers on a
single slot. 24 port line-card = 48 AE customers. Then I think you
can do 8 or 16 port PON cards, 1:32 split = 256 or 512 customers on
a single 3U? 4U? chassis, + the 48 AE customers. This is probably
what we're going to end up doing with the AE deployment we're
managing now. The AE is extremely underutilized and it should've
been GPON from the get-go.
If you're doing BiDi now and all the customers home-run to your
cabinet, put the GPON splitters at the cabinet. Cake walk. Same boat
we're in. Except some retrofit because they used a PAIR per
customer. And Clearfield built everything duplex LC. So one strand
won't get used in the field. Big whoop. Call the unused one a
backup. I love it when nobody listens to me. Coulda started BiDi and
went right to GPON with minimal changes.
On 7/31/2017 3:29 PM, Sterling Jacobson wrote:
Ok, so that is the share ratio then.
If I put on 18 customers on a port they would all share the 2.5
down by 1.25 up.
Or if I use 8 instead 4 of the UBNT Fiber OLT I can get 9 customers
on that ratio.
That would be 8 U plus 4 U space, which I think is probably my max
amount of rack space in the cabinets I am using right now.
That is likely a lot less power than the 12U of 48 port switches I
can use right now, but the share ratio is obviously much worse in
the long run.
Maybe I do a Hybrid and put 4 of the OLT, and still have 4x48 ports
active…
Then in the future if I run into clients complaining about their
1Gbps rate plan not being fast enough on the share ratio of 1 to
18, I can move them back to 1 to 1 active.
From: Af [mailto:[email protected]] On Behalf Of Mike Hammett
Sent: Monday, July 31, 2017 2:22 PM
To:[email protected]
Subject: Re: [AFMUG] UBNT OLT Transition from Active Ethernet to
GPON
GPON is 2.5 downstream 1.25 upstream per port.
-----
Mike Hammett
Intelligent Computing Solutions <http://www.ics-il.com/>
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--------------------------------------------------------------------------------
From: "Sterling Jacobson" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: Monday, July 31, 2017 3:19:36 PM
Subject: [AFMUG] UBNT OLT Transition from Active Ethernet to GPON
Anyone tried their PON OLT CPE and OLT 8 port (128 clients per
port) 1U unit?
I see pricing around $70 retail for OLT, but haven't seen pricing
yet for the OLT 1U unit.
Also, I'm active fiber right now, so I have full 1 to 1 panels in
the rack already.
If I wanted to 'migrate' to OLT from active I would need some sort
of transition panel/setup right?
Right now my density is 48 ports per 1U 1 to 1 single family home
connections.
The UBNT Fiber OLT has 8 ports handling up to 128 clients each,
with 20Gbps uplink capability (not quite sure on those split
details yet).
I currently only take a max of 576 per cabinet on active, so I
could easily use just one of these UBNT fiber OLT units.
If I don't care about the share ratio I guess, I would just get
another 576 panel count that spliced 72 count to each port and I'm
done.
I'm unclear what that panel/splice would look like though since
I've never actually done GPON.
And I would probably want to not load up that many per port, and
instead maybe get four of the UBNT Fiber OLT units.
That would take up 4U of rack space, the fanout would probably
still take up 4U of rack space, for a total of 8 U.
And I would have instead an 18 customer to 1 port on the GPON
instead of 72 which I like better for future use.
Do these UFiber OLT 1U rackmount units share just 1Gbps per each of
the 8 ports? That would only be 8Gbps needed total.
So I assume the GPON spec they are using can transmit more than
that per each of the 8 GPON ports, right?
--
Regards,
Chuck
