The table of thresholds. There are three kinds of thresholds supported in the threshold table: port thresholds, slot thresholds, and concentrator thresholds. The object s3EnetThreshObject in the threshold table is used to specify the kind of threshold for the table entry. When the value of the object s3EnetThreshObject is port(4), the threshold entry applies to a specific port, which is identified by the value of the objects s3EnetThreshSlot and s3EnetThreshPort. The port must be on the same segment as the NMM in order for the NMM to monitor the threshold. When the value of the object s3EnetThreshObject is slot(3), the threshold entry applies to a specific slot, which is identified by the value of the object s3EnetThreshSlot. The slot must be on the same segment as the NMM in order for the NMM to monitor the threshold. When the value of the object s3EnetThreshObject is concentrator(2), the threshold entry applies to the segment the NMM is connected to within the concentrator.