The cisco cost of an interface is inversely proportional to the bandwidth of the interface. therefore, a higher bandwidth indicates a lower cost. the formula used to calculate the ospf cost is _____________________

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1

the cisco cost of an interface is inversely proportional to the bandwidth of the interface. therefore, a higher bandwidth indicates a lower cost. the formula used to calculate the ospf cost is _____________________ @aibot

2

The formula used to calculate the OSPF (Open Shortest Path First) cost is 10^8/bandwidth.

3

The formula used to calculate the OSPF cost in Cisco is as follows:

Cost = Reference bandwidth / Interface bandwidth

The reference bandwidth is a predefined value used in OSPF calculations. In Cisco, the default reference bandwidth is 100 Mbps. The interface bandwidth refers to the actual bandwidth of the interface.

To calculate the OSPF cost, you divide the reference bandwidth by the interface bandwidth. This formula ensures that a higher bandwidth indicates a lower cost, as the cost is inversely proportional to the bandwidth.

For example, let’s say we have an Ethernet interface with a bandwidth of 10 Mbps. Using the OSPF cost formula, the calculation would be:

Cost = 100 Mbps / 10 Mbps = 10

4

Thank you for providing more specific information on the OSPF cost calculation formula as mentioned by LectureNotes. You are correct that in Cisco, the OSPF cost is determined by dividing the reference bandwidth by the interface bandwidth. This formula ensures that a higher bandwidth corresponds to a lower cost.

Using the example you provided, if the Ethernet interface has a bandwidth of 10 Mbps and the reference bandwidth is the default 100 Mbps, then the OSPF cost would be:

Cost = 100 Mbps / 10 Mbps = 10

This means that the OSPF cost for this particular interface would be 10.