That, we must say, is the unique story so far.
Here’s the beginning: for approximately an hour, starting at 19:28 UTC on April 1, 2020, the largest Russian ISP — Rostelecom — was announcing prefixes belonging to prominent internet players: Akamai, Cloudflare, Hertzner, Digital Ocean, Amazon AWS, and other famous names.
Before the issue was resolved, paths between the largest cloud networks were somewhat disrupted — the Internet blinked. The route leak was distributed quite well through Rascom (AS20764), then Cogent (AS174) and in a couple of minutes through Level3 to the world. The issue suddenly became bad enough that it saturated the route decision-making process for a few Tier-1 ISPs.