Specifications

8-39
Cisco ONS 15454 Installation and Operations Guide, R3.2
March 2002
Chapter 8 Performance Monitoring
Performance Monitoring for Optical Cards
Table 8-36 Near-End SONET Path PMs for the OC-3 Card
Parameter Definition
Note SONET path PMs will not count unless IPPM is enabled. For additional information, see
Enabling Intermediate-Path Performance Monitoring, page 8-10. The far-end IPPM feature is
not supported in Software R3.0, R3.1, or R3.2. However, SONET path PMs can be monitored
by logging into the far-end node directly.
STS CV-P
Near-End STS Path Coding Violations (CV-P) is a count of BIP errors
detected at the STS path layer (i.e., using the B3 byte). Up to eight BIP
errors can be detected per frame; each error increments the current CV-P
second register.
STS ES-P
Near-End STS Path Errored Seconds (ES-P) is a count of the seconds
when one or more STS path BIP 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 ES-P.
STS FC-P
Near-End STS Path Failure Counts (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.
STS SES-P
Near-End STS Path Severely Errored Seconds (SES-P) is a count of the
seconds when K (2400) or more STS path BIP 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 SES-P.
STS UAS-P
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 it continues to be unavailable until ten consecutive seconds occur that
do not qualify as SES-Ps.
Table 8-37 Far-End Line Layer PMs for the OC-3 Card
Parameter Definition
CV-L
Far-End Line Code Violation (CV-L) is a count of BIP errors detected by
the far-end line terminating equipment (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 BIP errors per STS-N
frame can be indicated using the REI-L. For OC-48 signals, up to 255 BIP
errors per STS-N frame can be indicated. The current CV-L second
register is incremented for each BIP error indicated by the incoming
REI-L.
ES-L
Far-End Line Errored Seconds (ES-L) is a count of the seconds when at
least one line-layer BIP error was reported by the far-end LTE or an
RDI-L defect was present.
SES-L
Far-End Line Severely Errored Seconds (SES-L) is a count of the seconds
when K (see GR-253-CORE for values) or more line-layer BIP errors
were reported by the far-end LTE or an RDI-L defect was present.