This is the far-end counterpart to the near-loss threshold, setting the loss level measured at the remote end of the test above which this session raises a fault, with -1 again disabling that fault entirely. Configuring separate near and far thresholds matters because loss can be asymmetric; a shared uplink congested only in one direction would show elevated loss on just one end, and independent thresholds let the alarm reflect that asymmetry rather than using one blended number.