Cisco ONS 15310-MA Troubleshooting Manual page 59

Chapter 2 Alarm Troubleshooting
If the alarm 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).
2.7.65 FE-AIS
The Far-End AIS condition occurs when an AIS has occurred at the far-end node. FE-AIS usually occurs
in conjunction with a downstream LOS alarm (see the
Generally, an AIS is a special SDH 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 it detects the 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 FE-AIS Condition
Step 1 Complete the
Step 2 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).
2.7.66 FE-DS3-SA
The Far End DS-3 Equipment Failure Service-Affecting condition occurs when there is a far-end
equipment failure on a 15310-MA SDH CTX, E1-21/DS3-E3-3, or E1-63/DS3-E3-3 E1 port that affects
service because traffic is unable to switch to the protect port.
Clear the FE-DS3-SA Condition
To troubleshoot an FE condition, determine which node and port link directly to the card reporting the
Step 1
FE alarm.
Log into the node that links directly to the port reporting the FE condition.
Step 2
Clear the main alarm. Refer to the appropriate alarm section in this chapter for troubleshooting
Step 3
instructions.
If the condition does not clear, log into the Technical Support Website at
Step 4
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
78-18663-01
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Object: DS3
"Clear the AIS Condition" procedure on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Object: DS3
"LOS (STM)" alarm on page
2-20.
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
Alarm Procedures
2-98).
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