Lop-V; Clear The Lop-V Alarm; Lo-Rxpower; Clear The Lo-Rxpower Alarm - Cisco ONS 15310-CL Troubleshooting Manual

Chapter 1 Alarm Troubleshooting
Step 4 If the error is not due to an incorrectly configured test set, the error is in the provisioned CTC circuit
size. Complete the
Step 5 Recreate the circuit for the correct size. For procedures, refer to the "Create Circuits" chapter in the
Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide.
Step 6 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC (1 800 553-2447) in order to report a Service-Affecting (SA)
problem.

1.7.143 LOP-V

The LOP VT alarm indicates a loss of pointer at the VT level. This alarm can occur when the received
payload does not match the provisioned payload. LOP-V is caused by a circuit size mismatch on the
concatenation facility.

Clear the LOP-V Alarm

Complete the
Step 1
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 2
for more information or call Cisco TAC (1 800 553-2447) in order to report a Service-Affecting (SA)
problem.

1.7.144 LO-RXPOWER

The Equipment Low Receive Power alarm is an indicator for OCN port received optical signal power.
LO-RXPOWER occurs when the measured optical power of the received signal falls below the threshold
value, which is user-provisionable.

Clear the LO-RXPOWER Alarm

At the transmit end of the errored circuit, increase the transmit power level within safe limits.
Step 1
Find out whether new channels have been added to the fiber. The number of channels affects power. If
Step 2
channels have been added, power levels of all channels need to be adjusted.
Find out whether gain (the amplification power) of any amplifiers has been changed. Changing
Step 3
amplification also causes channel power to need adjustment.
If the alarm does not clear, remove any receive fiber attenuators or replace them with lower-resistance
Step 4
attenuators.
78-17235-01
"Delete a Circuit" procedure on page
Default Severity: Major (MJ), Service-Affecting (SA)
SONET Logical Objects: VT-MON, VT-TERM
"Clear the LOP-P Alarm" procedure on page
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Object: OCN
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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
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1.7.143 LOP-V
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