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15.4 Performance Monitoring Parameter Definitions
Table 15-3
Parameter
LOFC
LOSS-L
NIOS
NPJC-PDET
NPJC-PDET-P
NPJC-PGEN-P
OPR
OPR-AVG
OPR-MAX
OPR-MIN
OPT
OPT-AVG
OPT-MAX
OPT-MIN
OPWR-AVG
OPWR-MAX
OPWR-MIN
PJCDIFF-P
PPJC-PDET
PPJC-PDET-P
Cisco ONS 15454 Reference Manual, R8.5
15-8
Performance Monitoring Parameters (continued)
Definition
Loss of Frame Count (LOFC)
Line Loss of Signal (LOSS-L) is a count of one-second intervals
containing one or more LOS defects.
Non-Idle Ordered Sets (NIOS) is a count of received packets containing
non-idle ordered sets.
Negative Pointer Justification Count, STS Detected (NPJC-PDET),
formerly Pointer Justification Negative (PJNEG)
Negative Pointer Justification Count, STS Path Detected (NPJC-PDET-P)
is a count of the negative pointer justifications detected on a particular
path in an incoming SONET signal.
Negative Pointer Justification Count, STS Path Generated
(NPJC-PGEN-P) is a count of the negative pointer justifications generated
for a particular path to reconcile the frequency of the SPE with the local
clock.
Optical Power Received (OPR) is the measure of average optical power
received as a percentage of the nominal OPR.
Average Receive Optical Power (dBm)
Maximum Receive Optical Power (dBm)
Minimum Receive Optical Power (dBm)
Optical Power Transmitted (OPT) is the measure of average optical power
transmitted as a percentage of the nominal OPT.
Average Transmit Optical Power (dBm)
Maximum Transmit Optical Power (dBm)
Minimum Transmit Optical Power (dBm)
Optical Power - Average (OPWR-AVG) is the measure of average optical
power on the unidirectional port.
Optical Power - Maximum (OPWR-MAX) is the measure of maximum
value of optical power on the unidirectional port.
Optical Power - Minimum (OPWR-MIN) is the measure of minimum
value of optical power on the unidirectional port.
Pointer Justification Count Difference, STS Path (PJCDIFF-P) is the
absolute value of the difference between the total number of detected
pointer justification counts and the total number of generated pointer
justification counts. That is, PJCDiff-P is equal to (PPJC-PGEN-P –
NPJC-PGEN-P) – (PPJC-PDET-P – NPJC-PDET-P).
Pointer Justification STS Detected (PPJC-PDET), formerly Pointer
Justification Positive (PJPOS).
Positive Pointer Justification Count, STS Path Detected (PPJC-PDET-P)
is a count of the positive pointer justifications detected on a particular path
in an incoming SONET signal.
Chapter 15
Performance Monitoring
78-18106-01
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