Hey guys,
Saw this come up on the NZNOG (NZNOG is a group of all the network operators e.g. ISPs in the country) - it looks like the number of "routes" on the internet is close to overloading some older routers. There's a good explanation here but to explain it briefly, the internet is made up of "routes" which tell you how to reach different IP addresses. Your computer or network will have an IP address and the service you connect to like Facebook will have another. The routes tell your computer how to reach Facebook. The number of routes is expanding, older Cisco routers have a maximum of 512,000 supported routes but the number has already reached 500,000 and for a brief period went over 512,000 causing parts of the internet to "go dark" from others.
it will be interesting to see those who are running older systems and not proactively monitoring them drop offline as their limits are hit.
http://www.bgpmon.net/what-caused-todays-internet-hiccup/