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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 8 Performance Monitoring
Performance Monitoring for Electrical Cards
Table 8-26 Near-End SONET Path PMs for the DS3XM-6 Card
Parameter Definition
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 at least one STS path BIP error was 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 when an AIS-P
failure, an LOP-P failure, a UNEQ-P, or a TIM-P failure is declared. A
failure event also begins 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 8-27 Far-End CP-bit Path PMs for the DS3XM-6 Card
Parameter Definition
DS3 CVCP-P
Code Violation (CVCP-PFE) is a parameter that is counted when the three
FEBE bits in a M-frame are not all collectively set to 1.
DS3 ESCP-P
Errored Second (ESCP-PFE) is a count of one-second intervals containing
one or more M-frames with the three FEBE bits not all collectively set to
1 or one or more far-end SEF/AIS defects.
DS3 SASCP-P
SEF/AIS Second (SASCP-PFE) is a count of one-second intervals
containing one or more far-end SEF/AIS defects.
DS3 SESCP-P
Severely Errored Second (SESCP-PFE) is a count of one-second intervals
containing one or more 44 M-frames with the three FEBE bits not all
collectively set to 1 or one or more far-end SEF/AIS defects.
DS3 UASCP-P
Unavailable Second (UASCP-PFE) is a count of one-second intervals
when the DS3 path becomes unavailable. A DS3 path becomes
unavailable when ten consecutive far-end CP-bit SESs occur. The ten
CP-bit SESs are included in unavailable time. Once unavailable, the DS3
path becomes available when ten consecutive seconds with no CP-bit
SESs occur. The ten seconds with no CP-bit SESs are excluded from
unavailable time.
