Apc-Corr-Skipped - Cisco NCS 2000 series Troubleshooting Manual

Alarm Troubleshooting

APC-CORR-SKIPPED

Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Objects: AOTS, OCH, OMS, OTS
The Automatic Power Control (APC) Correction Skipped condition occurs when the actual power level of a
channel exceeds the expected setting by 3 dBm or more. APC compares actual power levels with previous
power levels every hour or after any channel allocation is performed. If the power difference to be compensated
by APC exceeds the range of + 3 dBm or 3 dBm compared with the previous value set, APC is designed not
to correct the level and the APC-CORR-SKIPPED condition is raised.
The APC Correction Skipped alarm strongly limits network management (for example, a new circuit cannot
be turned into IS). The Force APC Correction button helps to restore normal conditions by clearing the APC
Correction Skipped alarm.
APC-DISABLED
Default Severity:Minor (MN), Non-Service-Affecting (NSA)
Logical Objects: NE, SHELF, AOTS, OTS, OMS, OCH, EQPT
The APC Disabled alarm occurs when the information related to the number of channels is not reliable. The
condition can occur when any of the following related alarms also occur: the
alarm, or the
recreate the circuit.
APC Disabled alarm is raised under the following conditions:
• When APC is manually disabled in a domain to prevent unexpected power regulations during maintenance
• When an abnormal event impacting optical regulation occurs.
• When an EQPT, MEA or IMPROPRMVL alarm is raised by any unit in a network.
• When gain or power degrade occurs or when the Power Fail alarm is raised by the output port of any
• When a VOA degrade or a VOA Fail alarm is raised by any unit in a network.
• When signalling protocol detects that one of the APC instances in a network is no longer reachable.
• When all nodes in a network do not belong to metro core.
MEA (EQPT)alarm. If the condition occurs with the creation of the first circuit, delete and
or troubleshooting.
amplifier in the network.
Note
The MEA and IMPROPRMVL alarms does not disable APC when raised on
OSCM, OSC-CSM, or MXP/TXP cards.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
APC-CORR-SKIPPED
EQPT alarm, the IMPROPRMVL
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