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That info. would probably come from FB though, not Cloudflare. At least that's how I understand the incident.

> "Our engineering teams have learned that configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues that interrupted this communication. "

and

> "... its root cause was a faulty configuration change on our end."

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

Love to hear the reason for the downs.