What does "EPS" in ddos threshold setting stands for?

Hi Herman2024 , 

Adding to the other replays , yes it's the event per Second. 
in more details >> It's the event for each vector for example "TCP RST" Vector so EPS here means how many TCP RSTs do you want BIGIP to trigger violation detected or mitigated if traffic reaches to it... i.e "The limit number for TCP RST"
Measure this on each Vector.