Facebook post-mortems...

Patrick W. Gilmore patrick at ianai.net
Tue Oct 5 02:53:09 UTC 2021


Update about the October 4th outage

https://engineering.fb.com/2021/10/04/networking-traffic/outage/

-- 
TTFN,
patrick

> On Oct 4, 2021, at 9:25 PM, Mel Beckman <mel at beckman.org> wrote:
> 
> The CF post mortem looks sensible, and a good summary of what we all saw from the outside with BGP routes being withdrawn.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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