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OSPF

OSPF Cost

cost = reference bandwidth / configured bandwidth of interface in kbps

reference bandwidth = 100,000 kbps
Interface speedOSPF Cost
100 Mbps1
10 Mbps10
6 Mbps17
5 Mbps20
4 Mbps25
3 Mbps33
2 Mbps50
1.5 Mbps67
1 Mbps100
768 Kbps130
512 Kbps195
384 Kbps260
256 Kbps391
128 Kbps781
64 Kbps1563