[94406] in North American Network Operators' Group
Re: Undersea fiber cut after Taiwan earthquake - PCCW / Singtel /
daemon@ATHENA.MIT.EDU (Justin M. Streiner)
Sun Jan 21 15:59:10 2007
Date: Sun, 21 Jan 2007 16:01:23 -0500 (EST)
From: "Justin M. Streiner" <streiner@cluebyfour.org>
To: nanog@merit.edu
In-Reply-To: <18f601940701211240q1dedb646v3b76c4055a66079e@mail.gmail.com>
Errors-To: owner-nanog@merit.edu
On Sun, 21 Jan 2007, Aaron Glenn wrote:
> Just the other night I was trolling marketing materials for various
> lit services from a number of providers and I ran across what I found
> to be an interesting PDF from the ol' SBC (can't find it at the
> moment). It was a government services product briefing and in it it
> detailed six levels of path diversity. These six levels ranged from
> "additional fiber on the same cable" to "redundant, diverse paths to
> redundant facility entrances into redundant wire centers". What struck
> me as interesting is that the government gets clearly definied levels
> of diversity for their services, but I've never run across anything
> similar in the commercial/enterprise/wholesale market.
I believe such levels of diversity and detail were specifically mandated
for the Fedwire.
> Are the Sprints/Verizons/ATTs/FLAGs/etc of the world clearly defining
> levels of diversity for their services to people?
From past discussions with them when I was in the ISP world, I'd have to
say for the most part the answer is no, and the bits of info that deviated
from that stance were normally divulged under NDA.
jms
