Cisco ONS 15454 Troubleshooting Manual page 425
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Also See for ONS 15454:
- Procedure manual (850 pages) ,
- Reference manual (728 pages) ,
- Software feature and configuration manual (232 pages)
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Chapter 2
Alarm Troubleshooting
If you see a SQUELCHED condition on the trunk, this can only be caused by a transponder (TXP) card.
Note
Note
For more information about MXP or TXP cards, refer to the Cisco ONS 15454 DWDM Reference
Manual.
Clear the SQUELCHED Condition
Step 1
If the object is reported against any object besides ESCON, determine whether the remote node and local
node reports and LOF or the LOS alarm (for the client trunk, as listed above). If it does, turn to the
relevant section in this chapter and complete the troubleshooting procedure.
If no LOF or LOS is reported, determine whether any other listed remote node or local node conditions
Step 2
as listed above has occurred. If so, turn to the relevant section of this chapter and complete the
troubleshooting procedure.
If none of these alarms is reported, determine whether the local port reporting the SQUELCHED
Step 3
condition is in loopback. (You will see LPBKFACILITY or LPBKTERMINAL condition for this
particular client type in the Condition window.) If it is in loopback, complete the following steps:
a.
b.
c.
Step 4
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.
2.7.382 SQM
The Sequence Mismatch alarm is a virtual concatenated (VCAT) member alarm. (VCAT member circuits
are independent circuits that are concatenated from different time slots into a higher-rate signal.) The
alarm occurs when the expected sequence numbers of VCAT members do not match the received
sequence numbers.
November 2009
Double-click the client card to open the card view.
Click the Maintenance > Loopback > Port tabs.
If the port Admin State column says OOS,MT or OOS,DSBLD, click the cell to highlight it and
choose IS from the drop-down list. Changing the state to IS also clears any loopback provisioned on
the port.
If ports managed into IS admin state are not receiving signals, the LOS alarm is either raised
Note
or remains, and the port service state transitions to OOS-AU,FLT.
Default Severity: Critical (CR), Service-Affecting (SA) for STSTRM; Major (MJ),
Service-Affecting (SA) for VT-TERM
SONET Logical Objects: STSTRM, VT-TERM
Cisco ONS 15454 Troubleshooting Guide, R8.5
2.7.382 SQM
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