BGP Diversion, also known as Infrastructure Protection, is a type of Cloud Protection in which the customer is able to divert its traffic to the DDoS provider using a BGP announcement. This method is applicable only to organizations that possess a C Class network and that can advertise it via BGP. To divert the traffic, both customer and provider change the BGP announcement to indicate to the entire Internet that the custom IPs should be routed to the provider data centers. BGP diversion can be Always-on or On-demand. It is more complicated than DNS diversion, but it has security advantages over it.
Related entries: DNS Diversion, Web Protection and Infrastructure protection.