Ot And Et Interface Alarms And Defects - Juniper PTX10008 Hardware Manual

FEC statistics:
Corrected Errors—The number of bits received that were in error, but corrected.
Uncorrected Words—The number of FEC codewords received that were not correctable.
Corrected Error Ratio—The number of corrected bits divided by the number of bits received.
TIP: You can view FEC statistics by using the show interfaces interface-name extensive
operational-mode CLI command.

OT and ET Interface Alarms and Defects

Table 38 on page 113 and
on the line card and the link status when the alarm or defect occurs.
TIP: You can view OT and ET alarms and defects by using the show interfaces interface-name
extensive operational-mode CLI command.
Table 38: OT Interface Alarms and Defects
Category Alarm
OTN Network lane LOS
Network lane LOF
Network lane LOM
Network lane OTU-BDI
OTN FEC FEC degrade (OTU-FEC-DEG)
FEC excessive (OTU-FEC-EXE)
Table 39 on page 114 describe the OT and ET alarms and defects that can occur
Description
Loss of signal
Loss of frame
Loss of multiframe
Backward defect identification
Forward error correction degraded
There are uncorrected words and
there are errors in the frame header
Link Status
Link down
Link down
Link down
Link down
Link down if signal
degrade or backward FRR
thresholds are met
Possible link down
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