Yesterday, internet service providers around the world and the services that used their networks started going offline and experiencing abnormal levels of packet loss and latency. The issue was widespread and affected a great many services. What happened?
The internet ran out of routes.
Update:
Here is a more thorough explanation of the issues of a couple of days ago: https://www.bgpmon.net/what-caused-todays-internet-hiccup/
The IPv4 public address space (the available publicly-routable IP addresses) has become more and more fragmented as companies have broken down the address blocks they own more and more and sold small chunks of their IPs on. ...