4.9 • 8.6K Ratings
🗓️ 6 July 2021
⏱️ 56 minutes
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0:00.0 | Whenever we have a computer problem that we need a troubleshoot, we often want to know |
0:04.6 | why that was a problem. |
0:06.2 | How did it break? |
0:07.6 | And you know what? |
0:08.8 | Sometimes you never get a good answer. |
0:11.2 | One time when I was at work, a router suddenly crashed. |
0:14.0 | The internet was down for that office and my teammate jumped on the problem to try to figure |
0:17.7 | out what was going on. |
0:18.7 | A few minutes later, the router was back up and online and was working fine all on his own. |
0:24.9 | This router crashed and rebooted. |
0:27.6 | But why? |
0:28.9 | My teammate wanted to know, so he began a forensic analysis. |
0:33.6 | He looked at the environmental data before the crash. |
0:36.2 | It was not showing high CPU or out of memory. |
0:38.9 | It did not have a heavy amount of traffic going over it either. |
0:42.0 | So this wasn't an overutilization issue. |
0:45.4 | Next he grabbed cord dumps, memory snapshots of what was present at the time of the crash, |
0:49.3 | and he sent that to the manufacturer of the router to see if they could figure it out. |
0:53.4 | A few days later, the manufacturer told us they analyzed the cord dumps and said the reason |
0:58.4 | for the crash was, Spurious Emissions from Space. |
1:04.0 | Spurious Emissions from Space. |
1:07.3 | That's what caused this router to crash. |
... |
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