Multi-Controller Placement Optimization Using Naked Mole-Rat Algorithm over Software-Defined Networking Environment

Table 3

Average SC latency with increasing number of controllers for Ernet topology.

Controller count (K)	Average SC latency (ms)	% decrease in latency from previous
1	6.28
2	3.75	40.3
3	2.52	32.8
4	1.8	28.6
5	1.53	15.0