Telstra outage: The night a network decided the year was 2006
TMWNN
37 points
13 comments
September 18, 2026
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Discussion Highlights (8 comments)
RockRobotRock
Shout out to the Jeff Geerling video about this
cube00
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.
rcaught
> 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.
scriptsmith
Lots of bloviating AI-prose. Here's the original report: https://www.telstra.com.au/exchange/what-we-ve-learned-from-... https://www.telstra.com.au/content/dam/tcom/dynamic-media-pr...
_kb
Direct link to the analysis report: https://www.telstra.com.au/content/dam/tcom/dynamic-media-pr...
ipython
All I could think of while reading this was “has no one heard of ntptrace?”
rmunn
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... ;-)
vesinisa
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.