Why is the default OSPF cost of an interface on an S series switch incorrect

Question: Why is default OSPF cost value incorrect?
For example, after OSPF is enabled on a device, the default OSPF cost value of an Ethernet interface is 7. Generally, the default OSPF cost value of an interface is 1.

Answer: The default OSPF cost value of an interface on an S series switch supporting OSPF depends on the values of bandwidth and bandwidth-reference. The value of bandwidth-reference is configured in an OSPF process. Generally, the default bandwidth-reference value is used. In this case, if the default bandwidth value is 100 Mbit/s, the OSPF cost value is 1.

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