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Chapter 8
Performance Monitoring
Table 8-35 Near-End Section PMs for the OC-12, OC-48, and OC-192 Cards (continued)
Parameter
SES-S
SEFS-S
Table 8-36 Near-End Line Layer PMs for the OC-12, OC-48, and OC-192 Cards
Parameter
CV-L
ES-L
SES-L
UAS-L
FC-L
Table 8-37 Near-End SONET Path H-byte PMs for the OC-12, OC-48, and OC-192 Cards
Parameter
PPJC-Pdet
NPJC-Pdet
November 2001
Definition
Section Severely Errored Seconds (SES-S) is a count of the seconds when
K (see GR-253 for value) or more section-layer BIP errors were detected
or an SEF or LOS defect was present.
Section Severely Errored Framing Seconds (SEFS-S) is a count of the
seconds when an SEF defect was present. An SEF defect is expected to be
present during most seconds when an LOS or LOF defect is present.
However, there may be situations when the SEFS-S parameter is only
incremented based on the presence of an SEF defect.
Definition
Near-End Line Code Violation (CV-L) is a count of BIP errors detected at
the line-layer (i.e. using the B2 bytes in the incoming SONET signal). Up
to 8 x N BIP errors can be detected per STS-N frame; each error
increments the current CV-L second register.
Near-End Line Errored Seconds (ES-L) is a count of the seconds when at
least one line-layer BIP error was detected or an AIS-L defect was
present.
Near-End Line Severely Errored Seconds (SES-L) is a count of the
seconds when K (see GR-253 for values) or more line-layer BIP errors
were detected or an AIS-L defect was present.
Near-End 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.
Near-End Line Failure Count (FC-L) is a count of the number of near-end
line failure events. A failure event begins when an AIS-L failure or a
lower-layer traffic-related, near-end failure is declared. This failure event
ends when the failure is cleared. A failure event that begins in one period
and ends in another period is counted only in the period where it begins.
Definition
Positive Pointer Justification Count, STS Path Detected (PPJC-Pdet) is a
count of the positive pointer justifications detected on a particular path on
an incoming SONET signal.
Negative Pointer Justification Count, STS Path Detected (NPJC-Pdet) is a
count of the negative pointer justifications detected on a particular path on
an incoming SONET signal.
Cisco ONS 15454 Installation and Operations Guide
Performance Monitoring for Optical Cards
8-39
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