How to gather total amount of traffic from the Radware DDOS app?

[k115]

Hi guys,

I have configured radware DDOS app into splunk,

I want gather the total amount of traffic from the DDOS app in splunk ( the traffic seems like an attack ) in GB.

the sample query like this.

index="security" sourcetype=DefensePro action="*" policy=* | 'Top_attack_types(*)'

how do I come up with this.