Facebook post-mortems...

Mel Beckman mel at beckman.org
Tue Oct 5 01:25:20 UTC 2021

The CF post mortem looks sensible, and a good summary of what we all saw from the outside with BGP routes being withdrawn. 

Given the fragility of BGP, this could still end up being a malicious attack. 

-mel via cell

> On Oct 4, 2021, at 6:19 PM, Jay Hennigan <jay at west.net> wrote:
> On 10/4/21 17:58, jcurran at istaff.org wrote:
>> Fairly abstract - Facebook Engineering - https://m.facebook.com/nt/screen/?params=%7B%22note_id%22%3A10158791436142200%7D&path=%2Fnotes%2Fnote%2F&_rdr <https://m.facebook.com/nt/screen/?params={"note_id":10158791436142200}&path=/notes/note/&_rdr>
> I believe that the above link refers to a previous outage. The duration of the outage doesn't match today's, the technical explanation doesn't align very well, and many of the comments reference earlier dates.
>> Also, Cloudflare’s take on the outage - https://blog.cloudflare.com/october-2021-facebook-outage/ <https://blog.cloudflare.com/october-2021-facebook-outage/>
> This appears to indeed reference today's event.
> -- 
> Jay Hennigan - jay at west.net
> Network Engineering - CCIE #7880
> 503 897-8550 - WB6RDV

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