cooling door

Mon Mar 31 19:21:32 UTC 2008

> 
> And to do this, fiber to the desktop (and a generous smattering of WLANs never
> hurts) must be considered first, no longer brought back to the local closet, but
> rather to one or two central locations that could either be in-building or to a
> nearby data center or colo. Or as far away as applications will permit. That last
> sentence should serve as evidence that I've learned my lesson ;)
> 

I didn't want to jump into this thread, but hey, its Monday.

This is just another kind of moving the bump down the carpet. By 
replacing semi-smart electronics in your closet, you need a massive 
number of ports in your 1 or two consolidation locations (which might 
mean all the same equipment you would've had in your wiring closet in 
one or two rooms).

This much cable (fiber or otherwise), especially if you have 1 drop to 
each "PC", "Phone" or other (current or future) IP/network-talker is 
massive. If you use a consolidated cable (800+ pairs) its expensive, 
heavy and more expensive to work with. When pairs die, you end up 
running additional stringers.

By contrast, aggregation at a wiring closet (while it usually requires a 
little power and in worst case some cooling) allows you to run lots of 
cables to a single point using simple structural wiring. Aggregate, and 
then move on. Fewer "uplinks" easier-to-upgrade "uplinks" (1 vs 1000s). 
More on-the-floor capacity (vs hauling to the basement where your 
central distribution frames are). Not to mention small bundles of cable 
are easier to test than a massive cross-connect frame [by easier, I 
mean, you can have a less technically savvy tester do it and not screw 
anything up].

Anyway, as Randy Bush says, I would encourage my competitors to do this.

Deepak