We want to thank you for taking the time to inform us about this situation. Our network team is currently working on it and we're planning on resolving this issue as soon as possible.
The situation is reported on this web site http://travaux.ovh.com/?do=details&id=7340 :
"The VKS GEO is abnormally widely used by hackers who launch attacks. This morning an attack was 80Gbps launched from hundreds of VKS.
Working on netflow to see who is responsible the attack to cut but the situation became too dangerous and too urgent.
So we will cut routing to isolate VKS hackers infrastructure and clean. This may take several days."
In the meantime we would like to invite you to keep yourself up to date concerning our new products and our most recent promotions and to follow us on Twitter @ovh