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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.126 FE-LOF
2.7.126 FE-LOF
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: DS3
The Far End LOF condition occurs when a far-end node reports the “LOF (DS3)” alarm on page 2-149
in C-bit framing mode.
Clear the FE-LOF Condition
Step 1 To troubleshoot an FE condition, determine which node and card link directly to the card reporting the
FE condition. For example, an FE condition on a card in Slot 12 of Node 1 could relate to a main alarm
from a card in Slot 6 of Node 2.
Step 2 Log into the node that links directly to the card reporting the FE condition.
Step 3 Complete the “Clear the LOF (DS1) Alarm” procedure on page 2-148. It also applies to FE-LOF.
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.
2.7.127 FE-LOS
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: DS3
The Far End LOS condition occurs in C-bit framing mode when a far-end node reports the “LOS (DS3)”
alarm on page 2-159.
Clear the FE-LOS Condition
Step 1 To troubleshoot the FE condition, determine which node and card link directly to the card reporting the
FE condition. For example, an FE condition on a card in Slot 12 of Node 1 could relate to a main alarm
from a card in Slot 6 of Node 2.
Step 2 Log into the node that links directly to the card reporting the FE condition.
Step 3 Complete the “Clear the LOS (DS1) Alarm” procedure on page 2-158.
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.
2.7.128 FE-MANWKSWBK-SPAN
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: OCN
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