Cisco ONS 15454 SDH User Manual page 13

Chapter 15 Performance Monitoring
Table 15-13 VC3 Low-Order Path PM Parameters for the Near-End and Far-End
Parameter
LP-EB
LP-BBE
LP-ES
LP-SES
LP-UAS
LP-ESR
LP-SESR
LP-BBER
Table 15-14 VC4 High-Order Path PM Parameters for the Near-End and Far-End
Parameter
HP-EB
HP-BBE
HP-ES
HP-SES
HP-UAS
April 2008
DS3i-N-12 Cards
Definition
Low-Order Path Errored Block (LP-EB) indicates that one or more bits
are in error within a block.
Low-Order Path Background Block Error (LP-BBE) is an errored block
not occurring as part of an SES.
Low-Order Path Errored Second (LP-ES) is a one-second period with one
or more errored blocks or at least one defect.
Low-Order Path Severely Errored Seconds (LP-SES) is a one-second
period containing 30 percent or more errored blocks or at least one defect.
SES is a subset of ES.
Low-Order Path Unavailable Seconds (LP-UAS) is a count of the seconds
when the VC path was unavailable. A low-order path becomes unavailable
when ten consecutive seconds occur that qualify as LP-SESs, and it
continues to be unavailable until ten consecutive seconds occur that do not
qualify as LP-SESs.
Low-Order Path Errored Second Ratio (LP-ESR) is the ratio of errored
seconds to total seconds in available time during a fixed measurement
interval.
Low-Order Path Severely Errored Second Ratio (LP-SESR) is the ratio of
SES to total seconds in available time during a fixed measurement
interval.
Low-Order Path Background Block Error Ratio (LP-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.
DS3i-N-12 Cards
Definition
High-Order Path Errored Block (HP-EB) indicates that one or more bits
are in error within a block.
High-Order Path Background Block Error (HP-BBE) is an errored block
not occurring as part of an SES.
High-Order Path Errored Second (HP-ES) is a one-second period with one
or more errored blocks or at least one defect.
High-Order Path Severely Errored Seconds (HP-SES) is a one-second
period containing 30 percent or more errored blocks or at least one defect.
SES is a subset of ES.
High-Order Path Unavailable Seconds (HP-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.
15.4.3 DS3i-N-12 Card Performance Monitoring Parameters
Cisco ONS 15454 SDH Reference Manual, R4.6
15-13