BMC-SDN: Blockchain-Based Multicontroller Architecture for Secure Software-Defined Networks

Table 5

Execution times vs. number of hosts.

Number of hosts	CTC (s)	TTBC (s)	UTBC (s)	TT (s)
10	0.017	0.007	0.002	0.026
50	0.018	0.007	0.012	0.037
100	0.014	0.008	0.014	0.036
150	0.026	0.028	0.018	0.072
200	0.037	0.026	0.017	0.08
250	0.043	0.036	0.032	0.111
300	0.039	0.036	0.029	0.104
350	0.047	0.038	0.047	0.132
400	0.045	0.04	0.056	0.141
450	0.051	0.055	0.049	0.155

CTC: consensus time; TTBC: transfer time within the blockchain; UTBC: update time from the blockchain; TT: total time.