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 >>>> > >>>> > >>> >>> >
