Originally Posted by Brad Mitchell

There is/was in fact a broadcast storm on the multi-terrabit peering fabric at the NAP of the Americas. We turned off all peer connections some time ago and are awaiting an explanation.

Something of this magnitude would have affected around 200 networks just within NOTA, I don't know that NOTA is the origin of the problem, but it's probable that this would be damaging to hosts and networks all over the place, at least in the S.E. US and everything south of the United States.

Brad