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 moving where your last mile vulnerabilities are (slightly.. as you are picking up multiple power vulnerabilities, Line of Sight, and other things along the way). 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. 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
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
Gino A. Villarini gav@aeronetpr.com Aeronet Wireless Broadband Corp. tel 787.273.4143 fax 787.273.4145
-----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
"Earth is a single point of failure."
On top of that, one basic principle of telecommunications:
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.
IMHO, this thread is getting way off topic, boring and useless.
Fiber cut is over, there will be many more, move on ...
Cheers Jorge