[larsmak]

OVH got a pretty good write-up on their blog[1], well worth a read. It looks as if their solution should be able to mitigate layer 3/4 attacks. From the blog: "Our surplus network has a capacity over 2 Tbps. We have three VAC in production, so we can manage up to 480 Gbps/480 Mpps." Cloud-flare took on the larges DDoS ever seen not to long ago, I think it peaked around 400Gbps.

1) http://www.ovh.com/us/blog/a1171.protection-anti-ddos-servic...