Cisco ONS 15454 Reference Manual page 495

Chapter 15 Performance Monitoring
Table 15-3
Parameter
SESR-PM
SESR-SM
SES-V
UAS-L
UASCP-P
UASCP-PFE
UAS-P
UAS-PFE
UAS-PM
OL-9217-01
Performance Monitoring Parameters (continued)
Definition
Path Monitoring Severely Errored Seconds Ratio (SESR-PM) indicates
the severely errored seconds ratio recorded in the OTN path during the PM
time interval.
Section Monitoring Severely Errored Seconds Ratio (SESR-SM)
indicates the severely errored seconds ratio recorded in the OTN section
during the PM time interval.
Severely Errored Seconds VT Layer (SES-V) is a count of seconds when
K (600) or more VT Path BIP errors were detected. An AIS-V defect (or
a lower-layer, traffic-related, near-end defect) or an LOP-V defect can
also cause SES-V.
Line Unavailable Seconds (UAS-L) is a count of the seconds when the line
is unavailable. A line becomes unavailable when ten consecutive seconds
occur that qualify as SES-Ls, and it continues to be unavailable until ten
consecutive seconds occur that do not qualify as SES-Ls.
Unavailable Seconds CP-bit Path (UASCP-P) is a count of one-second
intervals when the DS-3 path is unavailable. A DS-3 path becomes
unavailable when ten consecutive SESCP-Ps occur. The ten SESCP-Ps are
included in unavailable time. After the DS-3 path becomes unavailable, it
becomes available again when ten consecutive seconds with no SESCP-Ps
occur. The ten seconds with no SESCP-Ps are excluded from unavailable
time.
Unavailable Seconds CP-bit Path (UASCP-PFE) is a count of one-second
intervals when the DS-3 path becomes unavailable. A DS-3 path becomes
unavailable when ten consecutive far-end CP-bit SESs occur. The ten
CP-bit SESs are included in unavailable time. After the DS-3 path
becomes unavailable, it becomes available again when ten consecutive
seconds occur with no CP-bit SESs. The ten seconds with no CP-bit SESs
are excluded from unavailable time.
Near-End STS Path Unavailable Seconds (UAS-P) is a count of the
seconds when the STS path was unavailable. An STS path becomes
unavailable when ten consecutive seconds occur that qualify as SES-Ps,
and continues to be unavailable until ten consecutive seconds occur that
do not qualify as SES-Ps.
Far-End STS Path Unavailable Seconds (UAS-PFE) is a count of the
seconds when the STS path was unavailable. An STS path becomes
unavailable when ten consecutive seconds occur that qualify as
SES-PFEs, and continues to be unavailable until ten consecutive seconds
occur that do not qualify as SES-PFEs.
Path Monitoring Unavailable Seconds (UAS-PM) indicates the
unavailable seconds recorded in the OTN path during the PM time
interval.
15.4 15.4 Performance Monitoring Parameter Definitions
Cisco ONS 15454 Reference Manual, R7.0.1
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