On Fri, 20 July 2001, Leo Bicknell wrote:
On Fri, Jul 20, 2001 at 08:28:37AM -0400, David Lesher wrote:
I'm not sure where they could run temporary fiber... Next to the fire hoses snaking down the street?
You'd be surprised what they can come up with on short notice. For temporary fixes fiber can be quickly rolled out next to railroad tracks (yes, just laying on the ground) or down other right of way (sometimes even public roads). They generally put it in an innerduct
The Baltimore Sun has a graphic showing the re-routed fiber optic line. http://www.sunspot.net/news/local/bal-traingridlockmap.graphic I understand all the carriers have people working very hard to fix the cut, but the question which is rarely asked and even more rarely answered is where was the physical diversity in those carriers networks? Did these carriers know about this vulnerability in their network? When customers asked, were the customers told? What are MFN or Worldcom sales people telling customers who ask what happened to their network diversity?
Unnamed Administration sources reported that Sean Donelan said:
The Baltimore Sun has a graphic showing the re-routed fiber optic line.
http://www.sunspot.net/news/local/bal-traingridlockmap.graphic
Gack! That's 2+ *miles* of fiber, and dozen+ street crossing. Wonder if they've built ramps over the fiber or? I'll ask a local. -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
An OC3 we have on MFN fiber through there just came up at 9:38:12p EST. On Fri, 20 Jul 2001, David Lesher wrote:
Unnamed Administration sources reported that Sean Donelan said:
The Baltimore Sun has a graphic showing the re-routed fiber optic line.
http://www.sunspot.net/news/local/bal-traingridlockmap.graphic
Gack! That's 2+ *miles* of fiber, and dozen+ street crossing. Wonder if they've built ramps over the fiber or?
I'll ask a local.
-- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
-- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben -- -- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
On 20 Jul 2001, Sean Donelan wrote:
The Baltimore Sun has a graphic showing the re-routed fiber optic line.
http://www.sunspot.net/news/local/bal-traingridlockmap.graphic
There's an archived story about the history of the tunnel: http://www.sunspot.net/news/local/bal-traintunnel.story This is an interesting note for those wondering how the cables were physically snapped: "The tunnel also has a second use. An MCI fiber-optic cable trunk line suspended on the tunnel's west wall carries thousands of long-distance phone calls." It seems less than a derailment could cause some damage... I assume(???) that it's in heavy conduit of some sort, but it seems even some maintenance or other activities could snag something and cause a similar outage... Charles
On Fri, 20 Jul 2001, Charles Sprickman wrote:
It seems less than a derailment could cause some damage... I assume(???) that it's in heavy conduit of some sort, but it seems even some maintenance or other activities could snag something and cause a similar outage...
It does not take that much of a fire to melt a 4" conduit.
<> Nathan Stratton CTO, Exario Networks, Inc. nathan@robotics.net nathan@exario.net http://www.robotics.net http://www.exario.net
participants (6)
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Alex Rubenstein -
Charles Sprickman -
Dave Stewart -
David Lesher -
Nathan Stratton -
Sean Donelan