Specifications
8-23
Cisco ONS 15454 Installation and Operations Guide, R3.2
March 2002
Chapter 8 Performance Monitoring
Performance Monitoring for Electrical Cards
Table 8-14 SONET Path PMs for the DS1 and DS1N Cards
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, with each error incrementing 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 8-15 Far-End VT Path PMs for the DS1 Card
Parameter Definition
CV-V
Far-End VT Path Coding Violations (CV-VFE) is a count of the number
of BIP errors detected by the far-end VT path terminating equipment
(PTE) and reported back to the near-end VT PTE using the REI-V
indication in the VT path overhead. Only one BIP error can be indicated
per VT superframe using the REI-V bit. The current CV-VFE second
register is incremented for each BIP error indicated by the incoming
REI-V.
ES-V
Far-End VT Path Errored Seconds (ES-VFE) is a count of the seconds
when at least one VT path BIP error was reported by the far-end VT PTE,
or a one-bit RDI-V defect was present.
SES-V
Far-End VT Path Severely Errored Seconds (SES-VFE) is a count of the
seconds when K (600) or more VT path BIP errors were reported by the
far-end VT PTE or a one-bit RDI-V defect was present.
UAS-V
Far-End VT Path Unavailable Seconds (UAS-VFE) is a count of the
seconds when the VT path is unavailable at the far-end. A VT path is
unavailable at the far-end when ten consecutive seconds occur that qualify
as SES-VFEs.