[nznog] Large increase in traffic

Hi We're seeing a large increase in inbound traffic levels today. Appears to be coming in both over peering links and internationally. Right now it appears to be Microsoft related. An AKL-IX graph shows it well - http://monitor.akl-ix.nz/cacti/graph.php?local_graph_id=14&rra_id=all Or the MS port: http://monitor.akl-ix.nz/cacti/graph.php?action=view&local_graph_id=137&rra_id=all Does anyone else have more information to add as to what MS patches or similar are causing this? And over what borders this traffic is entering their networks? Cheers Dave