An outage affecting Cloudflare’s 1.1.1.1 DNS resolver service stemmed from a Border Gateway Protocol (BGP) hijack paired with a route leak. The issue disrupted 300 networks across 70 countries, but many users remained unaffected overall.
To counter the impact, Cloudflare coordinated with affected networks and deactivated peering sessions with those propagating incorrect routes. The implementation of Resource Public Key Infrastructure (RPKI) helped automatically reject invalid routes, preventing internal routing disruptions.
Via WinBuzzer
Read Huge Growth in Networks Benefiting From Routing Security