The principle of DDoS attacks is to overload services. Sometimes the provider's entire network is incapable of handling the load.
Thanks to its 11 Tbps network, OVH infrastructure can absorb a very high quantity of traffic during attacks, much more than the services offered by competitors.
When the attack is global, the mitigation services, replicated in 7 OVH data centers across 3 continents, activate simultaneously to combine their power and absorb the traffic. Their total capacity mitigation is more than 2 Tbps.
Other customers and services will not be affected at all.
Situation normal: vacuuming is not active.
Attack detected: multipoint vacuuming is activated, enabling the analysis and mitigation of the traffic on 3 VACs.