[113518] in North American Network Operators' Group
RE: Fiber cut in SF area
daemon@ATHENA.MIT.EDU (Deepak Jain)
Tue Apr 14 16:38:13 2009
From: Deepak Jain <deepak@ai.net>
To: Gino Villarini <gav@aeronetpr.com>, Jorge Amodio <jmamodio@gmail.com>,
"nanog@nanog.org" <nanog@nanog.org>
Date: Tue, 14 Apr 2009 16:35:30 -0400
In-Reply-To: <AA4A326A317BC640988D04873B64C5E452B6BA@aerosrv.aeronetpr.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I don't mean to jump in here and state the obvious, but wireless links are
not a panacea. At least a few folks have presented that fiber grooming has
affected their *region*. It's not difficult to imagine that wherever the
"head" link side (or agg point) of these regional wireless networks is...
probably coincides with a fiber network or other telecom POP. You are just=
=20
moving where your last mile vulnerabilities are (slightly.. as you are=20
picking up multiple power vulnerabilities, Line of Sight, and other things=
=20
along the way).=20
In the example of a tornado or other weather disturbance, wireless links
are subject to fade just as much as any kind of aerial wired asset.=20
Deepak Jain
AiNET
> -----Original Message-----
> From: Gino Villarini [mailto:gav@aeronetpr.com]
> Sent: Tuesday, April 14, 2009 4:12 PM
> To: Jorge Amodio; nanog@nanog.org
> Subject: RE: Fiber cut in SF area
>=20
> Here in my area most of business outfits that require maximum
> availability of Internet or WAN conenctions have implemented dual
> connections from dual providers, most with a fiber/copper main and a
> fixed wireless backup. This trend goes from banks to Mcdonalds
>=20
>=20
> Gino A. Villarini
> gav@aeronetpr.com
> Aeronet Wireless Broadband Corp.
> tel 787.273.4143 fax 787.273.4145
>=20
> -----Original Message-----
> From: Jorge Amodio [mailto:jmamodio@gmail.com]
> Sent: Tuesday, April 14, 2009 11:21 AM
> To: nanog@nanog.org
> Subject: Re: Fiber cut in SF area
>=20
> > "Earth is a single point of failure."
>=20
> On top of that, one basic principle of telecommunications:
>=20
> No matter how much diversity and path redundancy, tons of concrete or
> titanium sealed fiber vaults you have, in the data exchange between
> points A and B there will be always two single points of failure: A and
> B.
>=20
> IMHO, this thread is getting way off topic, boring and useless.
>=20
> Fiber cut is over, there will be many more, move on ...
>=20
> Cheers
> Jorge
