Table 8-12 Near-End Line Layer Pms For The Oc-3 Cards Card - Cisco ONS 15327 User Documentation
Hide thumbs
Also See for ONS 15327:
- Procedure manual (478 pages) ,
- Manual (42 pages) ,
- Reference manual (166 pages)
Table of Contents
Advertisement
Chapter 8
Performance Monitoring
Table 8-11 Near-End Section PMs for the OC-3 Card (continued)
Parameter
SES-S
SEFS-S
Table 8-12 Near-End Line Layer PMs for the OC-3 Cards Card
Parameter
CV-L
ES-L
SES-L
UAS-L
FC-L
June 2002
Definition
Section Severely Errored Seconds (SES-S) is a count of the seconds when
K (see GR-253 for value) or more section-layer B IP errors were detected
or a (Severely Errored Frame) SEF or Loss of Signal (LOS) defect was
present.
Section Severely Errored Framing Seconds (SEFS-S) is a count of the
seconds when a Severely Errored Frame (SEF) defect was present. A
(Severely Errored Frame) SEF defect is expected to be present during
most seconds when a Loss of Signal (LOS) or Loss of Frame (LOF) defect
is present. However, there can be situations when the SEFS-S parameter
is only incremented based on the presence of the SEF defect.
Definition
Code Violation Line (CV-L) is a count of B IP errors detected at the
line-layer (i.e. using the B2 bytes in the incoming SONET signal). Up to
8 x N B IP errors can be detected per STS-N frame; each error increments
the current CV-L second register.
Errored Seconds Line (ES-L) is a count of the seconds when at least one
line-layer B IP error was detected or an AIS-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
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 considered unavailable. A line becomes unavailable at the
onset of ten consecutive seconds that qualify as Severely Errored Seconds
Line (SES-Ls), and continues to be unavailable until the onset of 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 is
declared or when 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.
Performance Monitoring for Optical Cards
Cisco ONS 15327 User Documentation, R3.3
8-25
Advertisement
Table of Contents
