What does the cost of an OSPF link indicate?

The cost of an OSPF (Open Shortest Path First) link indicates the metric used to determine the "expense" of using that link for routing traffic. It is typically based on the bandwidth of the link, with lower costs assigned to higher bandwidth connections, making them more favorable for routing paths. OSPF uses these costs to calculate the shortest path to a destination, allowing for efficient network traffic management. Essentially, the link cost helps the OSPF algorithm make optimal routing decisions.