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US halts flights at busy East Coast airports, says fiber line cut

239 points · 150 comments · allanbreyes

  1. cube00 · · focus · HN ↗
    > When it went to flip into the backup, we discovered that the backup fiber had a break

    Pretty grim that a life critical system wasn't designed to report that the backup fibre was unserviceable until they attempted to switch over to it.

    I wonder how long it was down? Days, weeks, months?

    1. toast0 · · focus · HN ↗
      Sometimes your multiple fiber paths end up in the same bundle, severed by the same backhoe. It's always a fun day when that becomes apparent.
      1. jonah · · focus · HN ↗
        Years ago I was touring a POP in a small city. They were very proud to point out one fiber coming in one side of the building going South and another on the opposite side of the building going North.
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