Facebook post-mortems...

Tue Oct 5 16:50:34 UTC 2021

> On Oct 5, 2021, at 10:32 AM, Jean St-Laurent via NANOG <nanog at nanog.org> wrote:
> 
> If you have some DNS working, you can point it at a static “we are down and we know it” page much sooner,

At the scale of facebook that seems extremely difficult to pull off w/o most of their architecture online.  Imagine trying to terminate >billion sessions.

When they started to come back up and had their "We're sorry" page up- even their static png couldn't make it onto the wire.

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