On 2/16/2021 9:37 AM, John Kristoff wrote:

I'd suggest the AS 7007 event is perhaps the most notorious and

likely to top many lists including mine.

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AS7007 is how I found NANOG. We (Digital Island; first job out
of college) were in 10-20 countries around the planet at the time.
All of them went down while we were in cisco training. I kept
interrupting the class and telling my manager "everything's down!
We need to stop the training and get on it!" We didn't because I
was new and no one believed that much could go down all at once.
They assumed it was a monitoring glitch. So, the training
continued for a while until very senior engineers got involved.
One of the senior guys said something to the effect of "yeah, it's
all over NANOG." I said what is NANOG? I signed up for the list
and many of you have had to listen to me ever since... ;)

scott