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

Table 4

Execution times vs. number of switches.

Number of switches	CTC (s)	TTBC (s)	UTBC (s)	TT (s)
10	0.019	0.007	0.018	0.055
20	0.037	0.012	0.013	0.062
30	0.054	0.013	0.02	0.087
40	0.044	0.016	0.035	0.095
50	0.059	0.019	0.025	0.103
60	0.108	0.035	0.049	0.192
70	0.089	0.053	0.059	0.201
80	0.109	0.093	0.079	0.281
90	0.15	0.074	0.099	0.323
100	0.193	0.053	0.087	0.333

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