SDNDefender: A Comprehensive DDoS Defense Mechanism Using Hybrid Approaches over Software Defined Networking

Table 7

Settings for emulating TCP SYN flood attack.

Parameter	Value
TCP SYN packets, a benign host sends	30
TCP SYN packets, an attacker sends	1000
The payload of a TCP SYN packet	64 bytes
The capacity of the sliding window	6
The threshold of sequential entropy outliers	3
The difference threshold of two hurst indexes	0.12
The normal hurst threshold	0.5
The significance level of the flow goodput set	0.05
The confidence upper limit of the flow goodput set	10000 bps
Bandwidth factor for anomaly traffic	0.1
Limit of acceptable SYN requests in SRL	200
Limit of replaced flow entries in SRL	15
Illegal request threshold of a host in SLICOTS	50