defaultNMONAlarmSeverityAssignment-managedElement — ETSI published formal attachments
This packages defines the monitoring capabilities applied to signals with a CRC submultiframe structure. The attribute enableCRCMode set to TRUE selects the near/far-end performance processing of the receive signal based on CRC-4 block errors. During this mode of operation the degraded signal criteria are in effect dependent on the setting of the attributes burstyDegradeConsecutive and burstyDegradeThreshold. A communicationsAlarm notification shall be issued if the account for the detection of the degraded defect is encountered. The probableCause parameter of the notification shall indicate 'degradedSignal' [3]. The attribute remoteCRCIndication reflects the CRC-4 multiframe generator / detector status at the far-end NE [8]. The value of burstyDegradeConsecutive attribute represents the number of consecutive seconds that should be taken into account for the detection or clearing of the degraded defect. The attribute burstyDegradeThreshold contains the value that should be compared with errored blocks in that second in order to consider that second as a GOOD one or a BAD one [9].