OSPF

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OSPF Cost

cost = reference bandwidth / configured bandwidth of interface in kbps

reference bandwidth = 100,000 kbps
Interface speed OSPF Cost
100 Mbps 1
10 Mbps 10
6 Mbps 17
5 Mbps 20
4 Mbps 25
3 Mbps 33
2 Mbps 50
1.5 Mbps 67
1 Mbps 100
768 Kbps 130
512 Kbps 195
384 Kbps 260
256 Kbps 391
128 Kbps 781
64 Kbps 1563