nanog mailing list archives
RE: Fiber cut in SF area
From: "Crist Clark" <Crist.Clark () globalstar com>
Date: Mon, 13 Apr 2009 13:53:00 -0700
On 4/13/2009 at 1:12 PM, Peter Beckman <beckman () angryox com> wrote:On Mon, 13 Apr 2009, Scott Weeks wrote:--- beckman () angryox com wrote:I still think skipping the securing of manholes and access points in favor of active monitoring with offsite access is a better solution.The only thing missing from your plan was a cost analysis. Cost of each, plus operational costs, * however many of each type. How much would that be?So, let's see. I'm pulling numbers out of my butt here, but basing it on non-quantity-discounted hardware available off the shelf. ----------------------------------------- Manpower to design, build, maintain, train folks and monitor in the NOC. Costs of EMS, its maintenance. blah, blah, blah...My estimates are for getting something off the ground, equipment-wise, not operationally. What is the cost of the outages?
But would alarms prevent any, or what proportion, of these incidents?
From what we know of this specific one, would an alarm have stopped
the perpetrator(s)? It would have bought the NOC five, ten minutes tops before they got the alarm on the circuit. And in practice would a manhole alarm translate to a call to Homeland Security to have the SEALs descend the site pronto, a police unit to roll by when it has the time, or is it going to be an AT&T truck rolling by between calls? I'm guessing number two or three, probably three. So what would it get them in this case. If it doesn't deter these guys, who does it deter? And what are the costs of false alarms? What will the ratio of "real" alarms to false ones be? Maybe lower-stakes vandals take to popping the edge of manhole covers as a little prank. Or that one that triggers whenever a truck tire hits it right. Or the whole line of them that go off whenever the temperature drops below freezing. Or, what I am absolutely sure will happen, miscommunication between repair crews and the NOC about which ones are being moved or field crews opening them without warning the NOC (or even intra-NOC communication). Will they be a boy who cried wolf?
Current thread:
- Re: Fiber cut in SF area, (continued)
- Re: Fiber cut in SF area Ravi Pina (Apr 11)
- Re: Fiber cut in SF area Roy (Apr 11)
- Re: Fiber cut in SF area Mike Lyon (Apr 11)
- Re: Fiber cut in SF area Jorge Amodio (Apr 11)
- Re: Fiber cut in SF area Roy (Apr 11)
- RE: Fiber cut in SF area Carlos Alcantar (Apr 11)
- Re: Fiber cut in SF area Roger Marquis (Apr 11)
- Re: Fiber cut in SF area Joel Jaeggli (Apr 11)
- RE: Fiber cut in SF area Scott Weeks (Apr 13)
- RE: Fiber cut in SF area Peter Beckman (Apr 13)
- RE: Fiber cut in SF area Crist Clark (Apr 13)
- RE: Fiber cut in SF area Peter Beckman (Apr 13)
- RE: Fiber cut in SF area Peter Beckman (Apr 13)
- Re: Fiber cut in SF area Nathan Ward (Apr 13)
- Re: Fiber cut in SF area Jack Bates (Apr 13)
- Re: Fiber cut in SF area telmnstr (Apr 13)
- Re: Fiber cut in SF area Jack Bates (Apr 13)
- Re: Fiber cut in SF area Daryl G. Jurbala (Apr 13)
- Re: Fiber cut in SF area Jared Mauch (Apr 13)