Wat? No. You run 1-4 active 10Gbps ports (or more) over to your GPON chassis, and then go ~20Km to your subs from there. If you were doing a very dense setup like Calix E7-20 would use, that supports multiple 100Gbps uplinks.
On Fri, Feb 12, 2016 at 9:27 PM, Eric Kuhnke <eric.kuh...@gmail.com> wrote: > Doesn't that almost entirely negate the cost advantages of GPON, namely, > that there's a lot lower strand count and your fiber outside plant design > can use passive prism splits for the transport to the actively AC powered > network node? > > You realize the transport core to the gpon OLT chassis is still active fiber > in many designs, right? > > On Fri, Feb 12, 2016 at 7:21 PM, Josh Reynolds <j...@kyneticwifi.com> wrote: >> >> 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 >>>> > >>>> > >>> >>> >
