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To: owen@DeLong.SJ.CA.US (Owen DeLong) cc: nanog@merit.edu Date: Fri, 18 Jul 1997 13:41:57 -0400 From: Eric Sobocinski <sobo@merit.edu> On Fri, 18 Jul 1997 at 09:04 PDT, "Owen DeLong" <owen@DeLong.SJ.CA.US> wrote: > > > > Does anyone know (in general terms) how the actual spot/vicinity of a fiber > > cut like this is located? Or its generally the construction crew calling > > the boss and saying, shit, look what we found? > > > > Would appriciate any info. > > > > Thanks. > > > > /Subodh Nijsure (subodh@best.com) > > > > > Generally, it is narrowed down to the run between two points by what went > off line. Then, people follow the line until they see a BackHoe. > Sometimes, the construction company calls. Sometimes they just run. > > Owen Usually, after deciding that an outage is a cut, a carrier will attach some type of time-delay reflectometer (TDR) to one end of the fiber. The TDR tells them the cable distance to the break. Cable distance doesn't directly convert to driving mileage, but at least it narrows the search to a few miles. --eric
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