There was a lot of slowdown in the rate of transactions during the second half of the test. If this was a problem with the network, then I would be very worried about future denial of service attacks. Hopefully a bigger test can be organized later.
Here is a packet capture of the event (from an “edge” computer with only one connection) if anyone is interested in exact times and stuff. http://www.freefilehostingnow.com/filedownload.aspx?code=6bb2dbeea18e6a419daaadda5798bb05ec6b