Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 392

Trouble-clearing procedures
LOF
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LOF-O (Incoming SUPVY LOF)
The OSC SFP receive port on one of the amplifier cards has detected a Loss Of Frame.
The LOF-O alarm is raised if the SONET framer detects framing errors in the A1/A2
overhead bytes as per the SONET specification
This may be caused by the following reasons:
• A misconnected, damaged or dirty fiber
• The received power may not be within the acceptable range
• The data rate may be inconsistent
Severity
Service affecting?
Applicability
Corrective Action
A cold reset, reseat, or replacement of a card is service impacting if the card is currently
carrying services. To determine if any services are currently carried over a card, perform
the procedure
If there are services currently carried over the card, it may be best to wait for a
maintenance window before resetting, replacing, or reseating the card.
This procedure details the corrective action for a LOF-O against the OSC port. At the end
of each step wait to see if the fault clears. If it does not, go to the next step.
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1 Query for the OSC receive power on the port where the LOF-O condition is present.
CLI
WEBUI
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2-142
Major
Yes
AHPHG, AHPLG, ALPHG, ALPFGT, AM2017B, AM2125A,
AM2125B, AM2325B, OSCT
NOTICE
Service-disruption hazard
"Reseating a Card" (p.
show interface <shelf slot port>
From the Equipment Tree, select the card, and select the desired
port.
3-19).
LOF-O (Incoming SUPVY LOF)
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011