32 pointsby TMWNN4 hours ago8 comments
  • scriptsmith2 hours ago
    • anitilan hour ago
      They're pretty readable, I recommend that second one (though it leaves some questions I have unanswered). It's a good example of how latent issues with a large system can go unrecognised for a long time before a seeming unrelated change can trigger a cascading failure
  • rcaught3 hours ago
    > Each decision solved the problem in front of it. Nobody was asked to look at the sum of all actions.

    This is the perfect description of Telstra as a company.

    • jiggawatts38 minutes ago
      This reminds me of this: https://obamawhitehouse.archives.gov/blog/2015/03/26/why-we-...

      I saw the talk version of that and it has lodged in my memory. The point he made was that "health.gov" was made by a bunch of teams that made sure that their part worked, but nobody was in charge of making the whole thing work.

      This is sadly "normal" for large bureaucracies.

      Every time I see a giant, multi-million dollar catastrophe, it's always "proper", "documented", "enterprise", "by the book", and... "a total failure". The reason is always that nobody actually cares about the final outcome, only the paperwork in front of them that they need fill out, the checkbox that needs to be ticked, or the compliance requirement that needs to be met.

  • _kb2 hours ago
  • vesinisa8 minutes ago
    Is it really so that Time Division Multiplex timing in cellular networks is based on NTP time? I stopped reading after the article implied this - it doesn't sound plausible at all.
  • cube003 hours ago
    Author needs to decide which end of the stratum stack they want as the top.

    > This design from 2010 had at the top stratum 1 sources at Australia's National Measurement Institute (NMI)

    > Among otherwise comparable candidates, the lower stratum carries more weight.

  • ipython2 hours ago
    All I could think of while reading this was “has no one heard of ntptrace?”
  • RockRobotRock3 hours ago
    Shout out to the Jeff Geerling video about this
  • rmunn2 hours ago
    It's funny, but I had the same thing happen to me once. One day, overnight, my computer decided it was 2006.

    It happened twenty years ago...

    ;-)