Cloudflare’s perspective of the October 30 OVHcloud outage

Cloudflare observed a significant traffic drop starting at 13:21 UTC during the October 30 OVHcloud outage, with peered traffic volume falling significantly and a spike in traffic routed to the Amsterdam data center. OVHcloud's outage was attributed to an issue in a network configuration pushed by a peering partner, leading to a route leak that impacted both Cloudflare and OVHcloud. Worldstream later acknowledged a route leak on their network caused by a configuration error, affecting routes advertised to all peers.