Until this week the world record for DDOS attacks was against Spamhaus at 350 Gbps in 2013. (
viewtopic.php?f=20&t=4643 ) The Spamhaus attack used SNMP Amplifiction.
Ref:
http://www.techweekeurope.co.uk/news/cl ... ope-138731DDoS weighing in at nearly 400Gbps targets unnamed CloudFlare customer in Europe, as attackers use NTP to amplify attackThe European attack used NTP amplification which involves exploiting the UDP-based Network Timing Protocol.
CloudFlare CEO wrote:
Despite its apparent strength, there does not seem to have been any serious downtime as a result of the DDoS, unlike the Spamhaus attacks, which took out a swathe of sites. “There was extra latency in Europe. Overall, network was unaffected,” said Matthew Prince, CEO of CloudFlare.
So it looks like a bit of a damp squib, really.