Research Article
Multi-Controller Placement Optimization Using Naked Mole-Rat Algorithm over Software-Defined Networking Environment
Table 6
Average SC latency for BAT and NMR algorithms.
| Number of controllers (K) | Number of controlled switches | Average SC latency (ms) | Increase in latency from previous | Node (12), Los Angeles | Node (10), Chicago | Node (0), New York |
| 2 (NMR/BAT) algorithm | 5 switches, nodes: 11–15 | 14 switches, nodes: 0–10, 16–18 | — | 5.08 | — | 2 (NMR/BAT) algorithm | 8 switches, nodes: 5, 8, 11–16 | — | 11 switches, nodes: 0-4, 6–10, 17, 18 | 5.61 | 10% |
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