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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter2 Alarm Troubleshooting
2.7.27 AUTOSW-LOP (VT-MON)

Clear the AUTOSW-LOP (STSMON) Condition

Step1 Complete the “Clear the LOP-P Alarm” procedure on page2-91.
Step2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call CiscoTAC (1-800-553-2447).
2.7.27 AUTOSW-LOP (VT-MON)
Default Severity: NotAlarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: VT-MON
The AUTOSW-LOP alarm for the VT monitor (VT-MON) indicates that automatic path protection
protection switching occurred because of the “LOP-V” alarm on page2-92. If the path protection is
configured for revertive switching, it reverts to the working path after the fault clears.
Note This condition is only reported if the path protection is set up for revertive switching.

Clear the AUTOSW-LOP (VT-MON) Alarm

Step1 Complete the “Clear the LOP-V Alarm” procedure on page 2-92.
Step2 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call CiscoTAC (1-800-553-2447) in order to report a Service-Affecting (SA)
problem.
2.7.28 AUTOSW-PDI
Default Severity: NotAlarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: STSMON
The Automatic Path Protection Switch Caused by Payload Defect Indication (PDI) condition indicates
that automatic path protection switching occurred because of a “PDI-P” alarm on page2-113. If the path
protection is configured for revertive switching, it reverts to the working path after the fault clears.
Note This condition is only reported if the path protection is set up for revertive switching.

Clear the AUTOSW-PDI Condition

Step1 Complete the “Clear the PDI-P Condition” procedure on page2-114.