Table 8-28 Far-End Line Layer Pms For The Oc-48 Cards - Cisco ONS 15327 User Documentation

Chapter 8 Performance Monitoring
Table 8-27 Near-End SONET Path PMs for the OC-48 Cards (continued)
Parameter
STS FC-P
STS SES-P
STS UAS-P

Table 8-28 Far-End Line Layer PMs for the OC-48 Cards

Parameter
CV-L
ES-L
SES-L
UAS-L
FC-L
June 2002
Definition
Near-End STS Path Failure Counts (STS FC-P) is a count of the number
of near-end STS path failure events. A failure event begins with an AIS-P
failure, an LOP-P failure, a UNEQ-P failure or a TIM-P failure is
declared, or if the STS PTE that is monitoring the path supports ERDI-P
for that path. The failure event ends when these failures are cleared.
Near-End STS Path Severely Errored Seconds (STS SES-P) is a count of
the seconds when K (2400) or more STS path B IP errors were detected.
An AIS-P defect (or a lower-layer, traffic-related, near-end defect) or an
LOP-P defect can also cause an STS Severely Errored Seconds Path
(SES-P).
Near-End STS Path Unavailable Seconds (STS UAS-P) is a count of the
one-second intervals when the STS path is unavailable. The STS path is
unavailable at the onset of ten consecutive seconds that qualify as
Severely Errored Seconds Path (SES-Ps), and continues to be unavailable
until the onset of ten consecutive seconds that do not qualify as SES-Ps.
The ten seconds with no SES-Ps are excluded from available time.
Definition
Code Violation Line (CV-L) is a count of B IP errors detected by the
far-end LTE and reported back to the near-end LTE using the REI-L
indication in the line overhead. For SONET signals at rates below OC-48,
up to 8 x N B IP errors per STS-N frame can be indicated using the REI-L.
For OC-48 signals, up to 255 B IP errors per STS-N frame can be
indicated. The current CV-L second register is incremented for each B IP
error indicated by the incoming REI-L.
Errored Seconds Line (ES-L) is a count of the seconds when at least one
line-layer B IP error was reported by the far-end LTE or an RDI-L defect
was present.
Severely Errored Seconds Line (SES-L) is a count of the seconds when K
(see GR-253-CORE for values) or more line-layer B IP errors were
reported by the far-end LTE or an RDI-L defect was present.
UAS-L is a count of the seconds when the line is considered unavailable
at the far end. A line becomes unavailable at the onset of ten consecutive
seconds that qualify as SES-LFEs, and continues to be unavailable until
the onset of ten consecutive seconds that do not qualify as SES-LFEs.
FC-L is a count of the number of far-end line failure events. A failure
event begins when RFI-L failure is declared and ends when the RFI-L
failure clears. A failure event that begins in one period and ends in another
period is counted only in the period where it began.
Performance Monitoring for Optical Cards
Cisco ONS 15327 User Documentation, R3.3
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