On Tue, Dec 11, 2018 at 10:47 PM Baldur Norddahl <baldur.norddahl@gmail.com> wrote:
Compared to the traditional approach, you will only have one centralized GPON switch to manage. All the small ONT switches are managed through this. Complaints about the interface is vendor specific. Because there is only one centralized switch, it would be fairly cheap to switch vendor. Much cheaper than to rewire with copper in any case.
Except you won't have one central GPON switch because LANs change incrementally. That throwback in office 412 with the fax machine? Can't simply buy him a pots line. You get to futz with fax over the converged phone system. Speaking of the converged phone system, you're now committed to VoIP on a VLAN. When you decide you want to switch to a physically separated network for the phones, well, that's too bad because your cabling infrastructure doesn't make that possible. The AV lab gets screwed. You're running the coax they need through the noisy electrical riser because you didn't build dedicated comms risers and closets. Naturally nobody checked with them so you don't yet realize they can't do what they need to do with video over IP equipment. And what will you do in 5 years when they want the computer lab in 204 upgraded to 100Gig? Maybe run some fiber all the way back to the campus head end because as expensive as that is, it's still cheaper than replacing the OLT with 100-gig capable equipment and then replacing all the ONTs in the building because oops, there's no 100 gig OLT compatible with the old ONTs and you'd have to take the building down for a week to forklift-upgrade the whole mess. Folks have advised Nick rip it out now because they foresee the slow-motion train wreck on its way. That may be extreme, but certainly he should take immediate action to preserve his options. For example, I would demand the creation of comms closets and risers before the building opened and I'd threaten to quit if they weren't. At least then the inevitable modifications can be structured and planned instead of turning in to an ad-hoc mess. Regards, Bill Herrin -- William Herrin ................ herrin@dirtside.com bill@herrin.us Dirtside Systems ......... Web: <http://www.dirtside.com/>