I follow Oles on Twitter and I've noticed them setting up a new firewall system using arbor and tilera. From what I gather, they are protecting the entire network from common attacks and not just people that order an additional firewall. This is just an assumption on my behalf from the information I've read on his twitter. I am unsure if this service incurs an additional costs. Here is an example..
olesovhcom @elraro21 you are getting a synflood. I've activated the arbor on your IP.
http://t.co/FgxSZ1DmVU ]
and
olesovhcom #Ovh we are building the anti-DDoS network based on Cisco Nexus 7009, ASR 9001, #Tilera and #Arbor. 3x 160Gbps
http://t.co/fFvPTmUS8A