Clear The Autosw-Ais Condition; Autosw-Lop (Stsmon); Clear The Autosw-Lop (Stsmon) Condition; Autosw-Lop (Vt-Mon) - Cisco ONS 15310-CL Troubleshooting Manual

Chapter 1 Alarm Troubleshooting
Generally, an AIS is a special SONET signal that tells the receiving node that the sending node has no
valid signal available to send. AIS is not considered an error. The AIS condition is raised by the receiving
node on each input when the node sees the signal AIS instead of a real signal. In most cases when this
condition is raised, an upstream node is raising an alarm to indicate a signal failure; all nodes
downstream from it only raise some type of AIS. This condition clears when you resolve the problem on
the upstream node.

Clear the AUTOSW-AIS Condition

Complete the
Step 1
Step 2 If the condition 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).

1.7.26 AUTOSW-LOP (STSMON)

The Automatic Path Protection Switch Caused by LOP condition for the STS monitor (STSMON)
condition indicates that automatic path protection protection switching occurred because of the
alarm on page
path after the fault clears.
This condition is only reported if the path protection is set up for revertive switching.
Note

Clear the AUTOSW-LOP (STSMON) Condition

Complete the
Step 1
If the condition does not clear, log into the Technical Support Website at
Step 2
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447).

1.7.27 AUTOSW-LOP (VT-MON)

The AUTOSW-LOP alarm for the VT monitor (VT-MON) indicates that automatic path protection
protection switching occurred because of the
configured for revertive switching, it reverts to the working path after the fault clears.
This condition is only reported if the path protection is set up for revertive switching.
Note
78-17235-01
"Clear the AIS Condition" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: STSMON
1-92. If the path protection is configured for revertive switching, it reverts to the working
"Clear the LOP-P Alarm" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: VT-MON
"LOP-V" alarm on page
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1.7.26 AUTOSW-LOP (STSMON)
1-19.
1-92.
1-93. If the path protection is
"LOP-P"
1-29