Cisco ONS 15454 SDH User Manual page 30

15.6.2 STM-1E Card Performance Monitoring Parameters
Table 15-32 Near-End Pointer Justification PM Parameters for STM-1E Cards (continued)
Parameter
MS-NPJC-Pgen
Note
Table 15-33 VC4 and VC4-Xc Path PM Parameters for the STM-1E Card in Far-End E4 Mode
Parameter
ES
ESR
SES
SESR
BBE
BBER
UAS
EB
Cisco ONS 15454 SDH Reference Manual, R4.6
15-30
Definition
Multiplex Section Negative Pointer Justification Count, Path Generated
(MS-NPJC-Pgen) is a count of the negative pointer justifications
generated for a particular path.
For information about troubleshooting path protection switch counts, refer to the alarm
troubleshooting information in the Cisco ONS 15454 SDH Troubleshooting Guide.
Definition
Path Errored Second (ES) is a one-second period with one or more errored
blocks or at least one defect.
Path Errored Second Ratio (ESR) is the ratio of errored seconds to total
seconds in available time during a fixed measurement interval.
Path Severely Errored Seconds (SES) is a one-second period containing
30 percent or more errored blocks or at least one defect. SES is a subset
of ES.
Path Severely Errored Second Ratio (SESR) is the ratio of SES to total
seconds in available time during a fixed measurement interval.
Path Background Block Error (BBE) is an errored block not occurring as
part of an SES.
Path Background Block Error Ratio (BBER) is the ratio of BBE to total
blocks in available time during a fixed measurement interval. The count
of total blocks excludes all blocks during SESs.
Path Unavailable Seconds (UAS) is a count of the seconds when the VC
path was unavailable. A high-order path becomes unavailable when ten
consecutive seconds occur that qualify as HP-SESs, and it continues to be
unavailable until ten consecutive seconds occur that do not qualify as
HP-SESs.
Path Errored Block (EB) indicates that one or more bits are in error within
a block.
Chapter 15 Performance Monitoring
April 2008