Two big towers would get above buildings, interference wouldn't be a problem if they could get even more spectrum to themselves.
On 4/11/09, Travis Johnson <t...@ida.net> wrote: > I would imagine trying to do any kind of wireless, even licensed, could be > very difficult in the LA / SF / SJ areas.... > > Travis > > > Gino Villarini wrote: >> >> Someone should be using this example in a way to push wireless as a >> 2nd option for bup and redundancy >> >> >> Gino >> >> Sent from my Motorola Startac... >> >> >> Begin forwarded message: >> >> >>> >>> From: Mike Lyon <mike.l...@gmail.com> >>> Date: April 11, 2009 7:25:26 PM GMT-04:00 >>> To: Sean Donelan <s...@donelan.com> >>> Cc: na...@nanog.org >>> Subject: Re: Fiber cut in SF area >>> >>> >> >> >>> >>> Anyone know how banks in the Bay Area did through this? I wonder how >>> many >>> banks went dark and whether they had any backup plans/connectivity. Me >>> thinks its doubtful. >>> >>> I also wonder if the bigger pharmacies such as Longs, Walgreens, >>> Rite-Aid, >>> Etc had thought about these kinds of issues? I personally doubt it. >>> I bet >>> you they went dark along with everyone else. Unfortunate. >>> >>> The funny thing is that the California lottery would be somewhat >>> immuned to >>> this kind of disaster as they actually use Hughes VSAT at every single >>> retailer. >>> >>> Sorry for the random thoughts... >>> >>> -Mike >>> >>> >>> On Sat, Apr 11, 2009 at 4:11 PM, Sean Donelan <s...@donelan.com> >>> wrote: >>> >>> >>>> >>>> On Sat, 11 Apr 2009, Roger Marquis wrote: >>>> >>>> >>>>> >>>>> The real problem is route redundancy. This is what the original >>>>> contract >>>>> from DARPA to BBM, to create the Internet, was about! "The net" was >>>>> created to enable communications bttn point A and point B in this >>>>> exact >>>>> scenario. >>>>> >>>>> >>>> >>>> Uh, not exactly. There was diversity in this case, but there was >>>> also N+1 >>>> breaks. Outside of a few counties in the Bay Area, the rest of the >>>> country's telecommunication system was unaffected. So in that >>>> sense the >>>> system worked as designed. >>>> >>>> Read the original DARPA papers, they were not about making sure >>>> grandma >>>> could still make a phone call. >>>> >>>> >>>> For a good "man in the street" perspective of how the outage effected >>>> >>>>> >>>>> things like a pharmacy's ability to fill subscriptions and a >>>>> university >>>>> computer's ability to boot check out a couple of shows broadcast >>>>> on KUSP >>>>> (Santa Cruz Public Radio) this morning: >>>>> >>>>> >>>> >>>> Why didn't the "man in the street" pharmacy have its own backup >>>> plans? >>>> >>>> Why didn't the pharmacy also have a COMCAST or RCN broadband >>>> connection for >>>> alternative Internet access besides AT&T or Verizon, a Citizens >>>> Band radio >>>> channel 9 for alternative emergency communications besides 9-1-1, >>>> a satellite phone for alternative communications besides local cell >>>> phones, >>>> and a Hughes VSAT dish for yet even more diversity? Why was the >>>> pharmacy >>>> relying on a single provider? Or do it the old-fashion way before >>>> computers >>>> and telecommunications; keep a backup paper file of their records >>>> so they >>>> could continue to fill prescriptions? >>>> >>>> Why didn't the pharmacy have more self-diversity? Probably the usual >>>> reason, more diversity costs more. That may be the reason why >>>> hospitals >>>> have more diversity than neighborhood pharmacies; and emergency >>>> rooms have >>>> other ways to get medicine. Maintaining diversity and backups is >>>> probably >>>> also part of the reason why filling a prescription at a hospital is >>>> much >>>> more expensive than filling a prescription at your neighborhood >>>> pharmacy. >>>> >>>> Likewise, why didn't grandma have her own pharmacy backup plan. >>>> Don't wait >>>> until the last minute to refill a critical presciption, have backup >>>> copies >>>> of prescriptions with her doctor, have an account with an alternative >>>> pharmacist in case her primary pharmacist isn't reachable, etc. >>>> >>>> Readiness works better if everyone does their part, including >>>> grandma. >>>> >>>> Next time it won't be AT&T, it will be Cox or Comcast or Qwest or >>>> Level 3 >>>> or Global Crossing or .... or .... or .... . It won't be >>>> vandalism, it will >>>> be an earthquake, backhoe, gas main explosion, operator error, .... >>>> >>>> Everything fails sometimes. What's your plan? >>>> >>>> http://www.ready.gov/ >>>> >>>> personal opinion only >>>> >>>> >>>> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: wireless@wispa.org >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> >> -- Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer -------------------------------------------------------------------------------- WISPA Wants You! 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