Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 587

Trouble-clearing procedures
UPM
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Corrective Action
This procedure details the corrective action for clearing the GFP User Payload Mismatch
on an OT 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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Locate the OT with the UPM defect. Verify the encapsulation mode value.
1
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2 Locate the OT at the opposite end of the link. Ensure that the provisioning for the
encapsulation mode parameter is the same for each OT.
E
N D O F
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URU
URU (Underlying Resource Unavailable)
The URU-OTS conditions indicate that a transmission failure has occurred within the
Ingress, and if equipped, the Egress LD card.
The Underlying Resource Unavailable (URU) condition allows the north bound
monitoring system to detect that a service affecting condition other than LOS-P is present,
including transmission and equipment defects within the OTS or OTU layer. The 1830
PSS-36/PSS-32/PSS-16/PSS-4 will report LOS-P and URU (URU-OTS and URU-OTU)
at their line facing ports. For OTS, the 1830 PSS-36/PSS-32/PSS-16/PSS-4 correlates the
defects within the LD cards to report the URU-OTS conditions against the external facing
Line port. The LD card Line port is an OTS port type. For the simulated OTU facility this
means correlating the defects on the OT port to report the URU-OTU conditions against
the OTU type OT port.
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1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
S T E P S
UPM (GFP User Payload Mismatch)
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