If you're leasing per strand you don't even need two, use single strand 10GbE BiDi optics (1490/1550). Fiberstore has them for reasonable prices.
Or keep both strands and use bidi optics on both in parallel to achieve 20 Gbps in a 802.3ad, without the need to install a 1U passive prism cwdm 2 or 4 channel mux/demux. On Feb 13, 2016 4:28 AM, "Chris Fabien" <[email protected]> wrote: > Josh, > I don't think anyone is disputing that gpon is the right solution for an > isp with 1000s or millions of users. But Andreas asked about 110. > > That size of project is something I think a lot of WISP are likely to be > working on. Our fiber network is currently several projects of that size - > 50 to 200 homes within a few miles of a powered cabinet in a remote area. > Active was the cheapest way for me to do that and supports 1gig to each > home. > > Power for a 20u cabinet ( 288 ports in our design) will be about $30/mo > when fully loaded. And just 2 strands back to our NOC instead of 9 with PON > which is very significant if you happen to be leasing those strands, which > we are in one case. > On Feb 13, 2016 4:48 AM, "Josh Reynolds" <[email protected]> wrote: > >> Eric it doesn't matter. That's 1024 strands, 1024 SFPs, more power >> usage, more cooling, in multiple bigass cabinets. >> >> Does. Not. Scale. >> >> You take that into a dense suburb and that's what you end up with. >> >> This is precisely why every decent ISP of size is deploying GPON and >> not "active" fiber. The costs to get up _and_ maintain active is >> several magnitudes higher. Let's say you were comcast and you were >> rolling this out to your 22 million users on active. That's 22 million >> SFPs, 22 million ports, an asston of strands, huge cabinets, large >> batteries that have to get changed out every few years, HVAC, etc. >> Even on a relatively common GPON deployment (32 way), you're talking >> about a 32x reduction in port count, sfps, strands to pops, etc. from >> 22million ports to 687k. That's nothing to sneeze at. >> >> On Sat, Feb 13, 2016 at 3:24 AM, Eric Kuhnke <[email protected]> >> wrote: >> > That's assuming all 1024 active ports are in one central location and >> not >> > distributed around, like 96 ports in one place, accomplished with a >> pair of >> > 48-port 1u switches (fed on a 10Gbps ring) accompanied by a beefy UPS, >> in a >> > weatherproof ventilated 16U cabinet. >> > >> > Multiply by location of several network nodes each with anywhere from 1 >> to 6 >> > 1U switches. >> > >> > On Feb 12, 2016 7:47 PM, "Josh Reynolds" <[email protected]> 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 <[email protected]> >> 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" < >> [email protected]> >> >> > 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 [email protected] >> >> >> >> >> >> 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 <[email protected]> >> >> >> Date: 2016-02-12 10:21 PM (GMT-05:00) >> >> >> To: [email protected] >> >> >> 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" <[email protected]> >> 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 < >> [email protected]> >> >> >>> 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 < >> [email protected]> >> >> >>>> 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 >> >> >>>> > <[email protected]> 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 [email protected] >> >> >>>> >> >> >> >>>> >> 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 >> >> >>>> > >> >> >>>> > >> >> >>> >> >> >>> >> >> > >> >
