Based on your other post, I think you're talking about Device Fault management. You can go to Monitor > Fault Settings > Setup > Threshold Settings, and select the DFM > System Defined Groups > Interface and the interface type you want, then edit the thresholds for this group. Change the default utilization threshold from 40% to your desired value. Save your changes, then go to Monitor > Fault Settings > Setup > Apple Changes to apply them.
