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Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
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Chapter 2 Alarm Troubleshooting
Alarm Procedures
Note If ports managed into unlocked administrative state are not receiving signals, the LOS alarm
is either raised or remains, and the port service state transitions to unlocked-disabled,FLT.
Step 2 To find the path and node failure, verify the integrity of the SDH VC circuit path at each of the
intermediate SDH nodes.
Step 3 Clear alarms in the node with the failure, especially the “HP-UNEQ” alarm on page 2-141.
Step 4 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
2.7.182 LP-RFI
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
SDH Logical Objects: VCMON-LP, VCTRM-LP
An RFI VT Layer condition occurs when the ONS 15310-MA SDH detects an RFI in the SDH overhead
because of a fault in another node. Resolving the fault in the adjoining node clears the LP-RFI condition
in the reporting node. LP-RFI indicates that an upstream failure has occurred at the VC layer.
Clear the LP-RFI Condition
Step 1 Verify that the fiber connectors are securely fastened and connected to the correct slot. For more
information, refer to the “Install Hardware” chapter in the Cisco ONS15310-MA SDH Procedure Guide.
Caution Always use the supplied electrostatic discharge wristband when working with a powered
ONS 15310-MA SDH.
Step 2 If connectors are correctly connected, verify that the port is active and unlocked-enabled by completing
the following steps:
a. Confirm that the green ACT LED is on.
b. Double-click the ONS 15310-MA SDH in CTC to display the card view.
c. Click the Provisioning > Optical > Line tabs.
d. Verify that the Admin State column lists the port as unlocked.
e. If the Admin State column lists the port as locked, maintenance or locked, disabled, click the
column and choose unlocked. Click Apply.
Note If ports managed into unlocked administrative state are not receiving signals, the LOS alarm
is either raised or remains, and the port service state transitions to unlocked-disabled,FLT.
Step 3 If the ports are active and in service, use an optical test set to verify that the signal source does not have
errors. For specific procedures to use the test set equipment, consult the manufacturer.
Step 4 If the signal is valid, log into the node at the far-end of the reporting ONS 15310-MA SDH.
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