IPC-LOOPBACK-MISS
Default Severity: Minor (MI), Non-Service-Affecting (NSA)
Logical Objects: OTS
The Internal Patchcord Connection (IPC) Loopback Miss alarm is raised when the MF-DEG-5-CV,
MF-UPG-4-CV, or MF-M16LC-CV modules contain one or more than one disconnected port (port without
a patchcord cord or loopback cap). These passive modules are provided with loopback cap on disconnected
ports in order to pre-test all possible optical paths inside the node. The uninstalled loopback will raise the
alarm.
A false IPC-LOOPBACK-MISS alarm is raised if, a fibre inside an MPO has a very high insertion loss.
Clear the IPC-LOOPBACK-MISS Alarm
SUMMARY STEPS
1.
To clear the IPC-LOOPBACK-MISS alarm, do one of the below mentioned steps, as required:
DETAILED STEPS
To clear the IPC-LOOPBACK-MISS alarm, do one of the below mentioned steps, as required:
a) Replace the missing loopback cap on the disconnected port.
b) Install a patchcord on the disconnected port if you cannot replace the missing loopback. Update the node IPC list
using CTC or TL1.
The alarm will be cleared during the nest manual/automatic connection verification. The automatic connection verification
occurs every six hours. For the manual procedure, refer to
.
If the troubleshooting procedure does not clear the alarm, log into the Technical Support Website at
or call the Cisco Technical Assistance Center (1 800 553-2447) to report the problem.
IPC-VERIFICATION-DEGRADE
Default Severity: Minor (MI), Non-Service-Affecting (NSA)
Logical Objects: NE
The Internal Patchcord Connection (IPC) Verification Degrade condition occurs when the connection
verification detects a minor problem in the internal patchcords that includes:
• A minimum of one patchcord with insertion loss more than minor degrade threshold and less than major
degrade threshold
• A minimum of one patchcord is in Not Measurable state.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
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Alarm Troubleshooting
IPC-LOOPBACK-MISS