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

<table class="table-group" id="tab9"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Number of controllers (<i>K</i>) at 0.9 SC + 0.1 CC</td><td class="align_center" colspan="5">Number of controlled switches</td></tr><tr class="thead"><td class="align_center">Node (8), Delhi</td><td class="align_center">Node (3), Mumbai</td><td class="align_center">Node (13), Kolkata</td><td class="align_center">Node (7), Bengaluru</td><td class="align_center">Node (6), Chennai</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">4 (BAT algorithm)</td><td class="align_center">6 switches, nodes: 4, 5, 8, 10–12</td><td class="align_center">3 switches, nodes: 0, 1, 3</td><td class="align_center">3 switches, nodes: 9, 13, 14</td><td class="align_center">4 switches, nodes: 2, 6, 7, 15</td><td class="align_center">—</td></tr><tr><td class="align_left" colspan="6"><hr/></td></tr><tr><td class="align_left">4 (NMR algorithm)</td><td class="align_center">6 switches, nodes: 4, 5, 8, 10–12</td><td class="align_center">3 switches, nodes: 0, 1, 3</td><td class="align_center">3 switches, nodes: 9, 13, 14</td><td class="align_center">—</td><td class="align_center">4 switches, nodes: 2, 6, 7, 15</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Ernet: controller placement for <i>K</i> = 4 using both NMR and BAT at 0.9 SC + 0.1 CC scenario.</div>

Journal of Computer Networks and Communications

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Table 9

Table 9: Multi-Controller Placement Optimization Using Naked Mole-Rat Algorithm over Software-Defined Networking Environment 