Many 1U GPON OLT switches have 16 OLT ports and each port can have up to 128 ONT. This gives you 2048 ONT in one unit for the OLT. Typical power is less than 200 watt. Each ONT has 4 or more ethernet ports. So multiply with that. You could have a small campus on just one unit of OLT. On the other hand, I am not sure you will actually save any power as the ONTs also need power and they are many. Regards Baldur ons. 12. dec. 2018 22.56 skrev Mike Hammett <nanog@ics-il.net>:
Lower power consumption of electronics and the fact that most (not all) deployments don't need more than 10 megs committed to them, so share a big pipe and burst away. 1U can have 256 endpoints easily and consume less power than a regular switch.
----- Mike Hammett Intelligent Computing Solutions <http://www.ics-il.com/> <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> Midwest Internet Exchange <http://www.midwest-ix.com/> <https://www.facebook.com/mdwestix> <https://www.linkedin.com/company/midwest-internet-exchange> <https://twitter.com/mdwestix> The Brothers WISP <http://www.thebrotherswisp.com/> <https://www.facebook.com/thebrotherswisp> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> ------------------------------ *From: *"Alfie Pates" <alfie@fdx.services> *To: *nanog@nanog.org *Sent: *Wednesday, December 12, 2018 3:34:29 PM *Subject: *Re: Enterprise GPON / Zhone Questions
The discussion was regarding an in-building LAN - residential access networks/WANs are a wholly different beast and GPON is fantastically suitable for that particular problem.
There is, however, a reason that a lot of new mixed-use (business && residential) WAN fibre deployments end up building a home-run dark fibre network for business use and overbuilding with GPON for residential use - the 1-1 mapping of end users to patch points/flexibility points makes for a vastly more future-proof network.
I think we often underestimate just how long the networks we install stick around. I ordered a 10Gbit/s service not too long ago over the very same fibre that was used to serve 2Mbit/s connections in the mid 90s: I'm not kidding, the fibre was physically disconnected from an old, derelict 2Mbit/s SDH network termination and plugged into a brand new 10Gbit/s EDD.
GPON is cool, definitely - I've worked on very large scale GPON deployments before, and it is definitely a very useful technology that allows us to affordably deploy high-bandwidth consumer and small-business connectivity.
However - it is a compromise, and I don't think you're gaining anything by running GPON versus the tried-and-tested method of active, switch-based aggregation, especially compared to the sacrifices you make deploying a passively-aggregated network.
As I said before - I wouldn't stake my reputation on it.
~A