Cisco ONS 15310-CL, Руководство по устранению неисправностей

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
78-17235-01
Chapter 1 Alarm Troubleshooting
1.7.14 APS-INV-PRIM
The APS Invalid Mode alarm occurs if a 1+1 protection group is not properly configured at both nodes
to send or receive the correct APS byte. A node that is either configured for no protection or is configured
for path protection protection does not send the right K2 APS byte anticipated by a system configured
for 1+1 protection. The 1+1 protect port monitors the incoming K2 APS byte and raises this alarm if it
does not receive the byte.
The alarm is superseded by an APSCM or APSMM alarm. It is not superseded by an AIS condition. It
clears when the port receives a valid code for 10 ms.
Clear the APSIMP Alarm
Step 1 Check the configuration of the other node in the 1+1 protection group. If the far end is not configured
for 1+1 protection, create the group. For procedures, refer to the “Turn Up Node” chapter in the
Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide .
Step 2
If the other end of the group is properly configured or the alarm does not clear after you have provisioned
the group correctly, verify that the working ports and protect ports are cabled correctly.
Caution
Always use the supplied electrostatic discharge wristband when working with a powered ONS 15310-CL
or ONS 15310-MA system.
Step 3 Ensure that both protect ports are configured for SONET.
Step 4
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).
1.7.14 APS-INV-PRIM
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Object: OCN
The Optimized 1+1 APS Primary Facility condition occurs on OC-N ports in an optimized 1+1
protection system if the incoming primary section header does not indicate whether it is primary or
secondary.
Note
APS-INV-PRIM is an informational condition and does not require troubleshooting. If the APS switch
is related to other alarms, troubleshoot these alarms as necessary using the procedures in this chapter.
1.7.15 APSMM
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Object: OCN
An APS Mode Mismatch failure alarm occurs on OC-3 ports when there is a mismatch of the protection
switching schemes at the two ends of the span, such as being bidirectional at one end and unidirectional
at the other. Each end of a span must be provisioned the same way: bidirectional and bidirectional or
unidirectional and unidirectional.