This object configures the routing metric cost assigned to a specific Type-of-Service class on an IP interface, used by the OSPF (Open Shortest Path First) routing protocol to determine the most efficient path for traffic. The default metric is computed as 10^9 divided by the interface speed (in bits per second), and setting a value of zero means the interface will use a default reference metric. Network administrators adjust this value to influence how traffic flows through multi-path networks and prioritize certain routes over others.