OSPF default metric values
The metric determined for a particular link used by OSPF depends upon the speed of that particular link. The default cost values for the metric of specific speeds can be found in the following table:
| Bandwidth | OSPF Cost |
|---|---|
| 100 Gbps | 1 |
| 40 Gbps | 1 |
| 10 Gbps | 1 |
| 1 Gbps | 1 |
| 100 Mbps | 1 |
| 10 Mbps | 10 |
| 1.544 Mbps | 64 |
| 768 Kbps | 133 |
| 384 Kbps | 266 |
| 128 Kbps | 781 |
This default OSPF cost table can be adjusted by changing the reference bandwidth.
The metric to a particular destination is the sum of outgoing interface costs.
Links:
https://forum.networklessons.com/t/how-to-configure-ospf-stub-area/936/36?u=lagapides