EBER-O (Optical Supervision Channel Excessive BER)
The OSC SFP receive port on one of the amplifier cards has detected an excessive BER.
The EBER-O alarm is raised if the SONET framer detects errors in the as per the SONET
specification.
• A misconnected, damaged or dirty fiber
• The received power may not be within the acceptable range
Severity Not alarmed
Service affecting? No
Applicability A2325A, AHPHG, AHPLG
Corrective Action
NOTICE
Service-disruption hazard
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 “Reseating a Card” (p. 3-19).
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 EBER-O against the OSC port. At the end
of each step wait to see if the fault clears. If not, continue with the next step.
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1
Query for the OSC receive power on the port where the EBER-O conditions is present.
CLI show interface
<shelf slot port>
WEBUI From the Equipment Tree, select the card, and select the desired port.
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2
Verify that the fiber is the correct type (multimode/single-mode) and that the other end of
the fiber is connected properly.
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3
Ensure that the administrative state of the port is Admin Up. If it is Up, then toggle the
administrative state from UP > DOWN > UP.
Trouble-clearing procedures
EBER
EBER-O (Optical Supervision Channel Excessive BER)
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2-86
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
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