[afnog] Another Perspective - Kentik's View on the Facebook Outage

Mark Tinka mark at tinka.africa
Thu Oct 7 14:00:39 UTC 2021

On 10/7/21 10:30, Markus Akena Wipfler wrote:

> All good and well but no mention of disappearance of the actual DNS 
> records on their authoritative DNSes :) during that period. I don't 
> think it's per design, eg remove DNS record if prefix X is not seen in 
> routing table.

This seems to have been a somewhat unique design architecture to 
Facebook, one that I am certain they are reviewing.

While the presence of DNS would not have provided service, it would have 
made troubleshooting (both for Facebook and the wider Internet 
community) simpler.


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