Far-end Laser Squelch
NCS 1002 supports far-end laser squelch. This feature relays the following:
• Client input signal to the far-end client output signal, especially faults.
• Near-end client-side faults such as SIGOSS, SYNCLOSS, HIBER, and LF to the far-end.
If a near-end QSFP has a fault on its RX side, the far-end QSFP laser is turned off.
The SQUELCHED alarm is raised on the far-end NCS 1002 if laser-squelch is configured on the far-end
NCS 1002 and a fault on the near-end NCS 1002 is observed on the client RX side.
Far-end client laser squelch does not work on headless events such as a reload, CPU OIR, or an mxp_driver
restart.
Note
Clear the SQUELCHED Alarm
Determine whether the associated NCS 1002 trunk port reports an LOF or LOS alarm (for the client trunk). If it does,
turn to the relevant section in this chapter and complete the troubleshooting procedure.
TEMPERATURE Alarm
Default Severity: Critical (CR) , Service-Affecting (SA)
Logical Objects: EQUIPMENT
The temperature alarms are raised on the NCS 1002 when the temperature is not within the operating range.
When this condition occurs, critical devices like DSP, and ETNA automatically shut down.
The alarm can appear in one of the following formats:
• [
sensor name
] : high temperature alarm
• [
sensor name
] : low temperature alarm
The [
sensor name
] : high temperature alarm is raised when the temperature is high and not within the operating
range.
The [
sensor name
] : low temperature alarm is raised when the temperature is low and not within the operating
range.
All sensors managed at the CPU level have NM as the prefix. NM denotes Node management. All sensors
managed at the rack level have RM as the prefix. RM denotes Rack management. Some alarms that come in
this category have the alarm tags as: NM-TEMP, RM-TEMP.
Fan Speed and Chassis Inlet Temperature Thresholds
The table below lists the chassis inlet temperature threshold values for the different fan speeds.
Troubleshooting Guide for Cisco NCS 1002, IOS XR Release 6.3.x
70
Alarm Troubleshooting
Clear the SQUELCHED Alarm
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