nanog mailing list archives

Re: OT: Below grade fiber interconnect points


From: Jay Ashworth <jra () baylink com>
Date: Fri, 15 Nov 2013 15:29:42 -0500 (EST)

----- Original Message -----
From: "Michael Sinatra" <michael () rancid berkeley edu>

UC Berkeley installed 3 CEVs (Controlled Environment Vaults) below
ground on campus about 10-15 years ago. One of them houses one of the
two main fiber penetrations to campus, including DWDM gear,
patch-panels, border routers, even packetshapers (back when those were
relevant in a large EDU environment), servers, WiFi portals, etc. This
stuff has all been in place for at least 10 years and has worked really
well, modulo the caveats below. Two of the vaults have 6-7 19" telco
racks, and one (the one with the big fiber entrance) also has a 23"
rack in addition to the others.

Caveats:

[ 17 pages of caveats elided ]

So, the elephant in the room at this stage of the thing is this:

Why don't you just *put this stuff in a building*, and, y'know, never
demolish it?

Yes, you'll probably have to build it to CO grade standards, but that 
isn't exactly rocket surgery, and it seems to me that you peel
3 or 4 layers of crap off the top doing it that way.

Unless you're in, say, the Philippines, I can't see the advantage of
burying all that stuff underground on a campus-scale deployment.

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra () baylink com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA               #natog                      +1 727 647 1274


Current thread: