17-21
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 17 Performance Monitoring
17.5 ITU G.709 and ITU-T G.8021 Trunk-Side PM Parameter Definitions
17.5 ITU G.709 and ITU-T G.8021 Trunk-Side PM Parameter
Definitions
Table 17-27 defines the ITU G.709 and ITU-T G.8021 section monitoring trunk-side PM parameters. For
more information, see the “17.2 Transponder and Muxponder Card Performance Monitoring” section
on page 17-2.
LOFC Loss of Frame Count (LOFC) is a count of the lost frames.
NIOS Non-Idle Ordered Sets (NIOS) is a count of received packets
containing non-idle ordered sets.
OPR Optical Power Received (OPR) is the measure of average optical
power received as a percentage of the nominal OPR.
OPR-AVG Average Receive Optical Power (OPR-AVG) is the average
received optical power measured in dBm.
OPR-MAX Maximum Receive Optical Power (OPR-MAX) is the maximum
received optical power measured in dBm.
OPR-MIN Minimum Receive Optical Power (OPR-MIN) is the minimum
received optical power measured in dBm.
OPT Optical Power Transmitted (OPT) is the average optical power
transmitted as a percentage of the nominal OPT.
OPT-AVG Average Transmit Optical Power (OPT-AVG) is the average
transmitted optical power measured in dBm.
OPT-MAX Maximum Transmit Optical Power (OPT-MAX) is the maximum
transmitted optical power measured in dBm.
OPT-MIN Minimum Transmit Optical Power (OPT-MIN) is the minimum
transmitted optical power measured in dBm.
OPWR-AVG Optical Power - Average (OPWR-AVG) is the measure of
average optical power on the unidirectional port.
OPWR-MAX Optical Power - Maximum (OPWR-MAX) is the measure of
maximum value of optical power on the unidirectional port.
OPWR-MIN Optical Power - Minimum (OPWR-MIN) is the measure of
minimum value of optical power on the unidirectional port.
UNC-WORDS Uncorrectable Words (UNC-WORDS) is the number of
uncorrectable words detected in the DWDM trunk line during
the PM time interval.
VPC Valid Packets (VPC) is a count of received packets that contain
non-errored data code groups that have start and end delimiters.
Table 17-24 ONS 15454 Optics and 8b10b PM Definitions (continued)
Parameter Definition
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