The value of tmnxOspfReferenceBandwidth specifies default metrics to any OSPF interface. The cost metric is calculated by dividing the value of tmnxOspfReferenceBandwidth by the bandwidth of the interface. The default value of 100,000,000 Kbps or 100 Gps provides a 10-Mbs link with a cost of 10000, a 100-Mbs link with a cost of 1000, a 1-Gbs link with a cost of 100 and 10-Gbs link with a cost of 10. To override this default cost on a particular interface, set tmnxOspfIfCfgMetric for that interface. The maximum value of 4,000,000,000 Kbps amounts to 4 Terabit per second. To configure higher reference bandwidth values, please use the newer objects tmnxOspfReferenceBandwidthU64Hi and tmnxOspfReferenceBandwidthU64Lo in tmnxOspfGeneralExTable. In case a reference bandwidth is configured in tmnxOspfGeneralExTable that exceeds the maximum of the tmnxOspfReferenceBandwidth range, this object will return the maximum value. The real reference bandwidth can be found in tmnxOspfReferenceBandwidthU64Hi and tmnxOspfReferenceBandwidthU64Lo.