Cisco NCS 2000 series Troubleshoot Manual

Logical Object: AOTS
The Gain High Degrade alarm is raised on an amplifier card (OPT-BST, OPT-PRE, OPT-AMP-C, or
OPT-AMP-17-C), 40-SMR1-C, or 40-SMR2-C card when the amplifier reaches the Gain High Degrade
Threshold. (This value is automatically provisioned with the gain setpoint, but the alarm threshold is 2 dBm
higher than the setpoint.
This alarm is applicable only when the amplifier working mode is set to Control Gain.
Note
Clear the GAIN-HDEG Alarm
SUMMARY STEPS
1. Verify that the LED is correctly illuminated on the physical card. A green ACT/SBY LED indicates an
active card. A red ACT/SBY LED indicates a failed card.
2. Complete the Reset a Card in CTC, on page 449 procedure on the failing amplifier.
3. If the alarm does not clear, identify all the OCHNC circuits applying to the failing card. Force all the
protected circuits on the optical path that the faulty amplifier does not belong to. Switch the OCHNC
administrative state of all these circuits to OOS,DSBLD (or Locked,disabled).
4. Switch the administrative state of only one of the OCHNC circuits to IS,AINS (or
Unlocked,automaticInService). This forces the amplifier to recalculate its gain setpoint and value.
5. If the alarm does not clear and no other alarms exist that could be the source of the GAIN-HDEG alarm,
or if clearing an alarm did not clear the GAIN-HDEG, place all of the card ports in OOS,DSBLD (or
Locked,disabled) administrative state.
6. Complete the Physically Replace a Card, on page 453 procedure for the reporting card.
DETAILED STEPS
Step 1 Verify that the LED is correctly illuminated on the physical card. A green ACT/SBY LED indicates an active card. A
red ACT/SBY LED indicates a failed card.
Step 2 Complete the Reset a Card in CTC, on page 449 procedure on the failing amplifier.
Step 3 If the alarm does not clear, identify all the OCHNC circuits applying to the failing card. Force all the protected circuits
on the optical path that the faulty amplifier does not belong to. Switch the OCHNC administrative state of all these circuits
to OOS,DSBLD (or Locked,disabled).
All remaining unprotected circuits will suffer for a traffic hit when you disable the circuits.
Caution
Step 4 Switch the administrative state of only one of the OCHNC circuits to IS,AINS (or Unlocked,automaticInService). This
forces the amplifier to recalculate its gain setpoint and value.
Step 5 If the alarm does not clear and no other alarms exist that could be the source of the GAIN-HDEG alarm, or if clearing
an alarm did not clear the GAIN-HDEG, place all of the card ports in OOS,DSBLD (or Locked,disabled) administrative
state.
Step 6 Complete the Physically Replace a Card, on page 453 procedure for the reporting card.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
209
Alarm Troubleshooting
Clear the GAIN-HDEG Alarm

Cisco NCS 2000 series Specifications

General

Brand	Cisco
Model	NCS 2000 series
Category	Network Hardware
Language	English