Cisco ONS 15454 SDH - Manual (Page 37)

15-37
Cisco ONS 15454 SDH Reference Manual, R4.6
April 2008
Chapter 15 Performance Monitoring
15.6.4 STM-16 and STM-64 Card Performance Monitoring Parameters
Table 15-40 Multiplex Section PM Parameters for the Near-End and Far-End STM-16
and STM-64 Cards
Parameter Definition
MS-EB Multiplex Section Errored Block (MS-EB) indicates that one or more bits
are in error within a block.
MS-BBE Multiplex Section Background Block Error (MS-BBE) is an errored block
not occurring as part of an SES.
MS-ES Multiplex Section Errored Second (MS-ES) is a one-second period with
one or more errored blocks or at least one defect.
MS-SES Multiplex Section Severely Errored Second (MS-SES) is a one-second
period which contains 30 percent or more errored blocks or at least one
defect. SES is a subset of ES. For more information, see ITU-T G.829
Section 5.1.3.
MS-UAS Multiplex Section Unavailable Seconds (MS-UAS) is a count of the
seconds when the section was unavailable. A section becomes unavailable
when ten consecutive seconds occur that qualify as MS-SESs, and it
continues to be unavailable until ten consecutive seconds occur that do not
qualify as MS-SESs. When the condition is entered, MS-SESs decrement
and then count toward MS-UAS.
Table 15-41 Pointer Justification Count PM Parameters for the Near-End STM-16
and STM-64 Cards
Parameter Definition
Note In CTC, the count fields for PPJC and NPJC PM parameters appear white and blank unless they
are enabled on the Provisioning > Line tabs. See the
“15.3 Pointer Justification Count
Performance Monitoring” section on page 15-3 .
HP-PPJC-Pdet High-Order Positive Pointer Justification Count, Path Detected
(HP-PPJC-Pdet) is a count of the positive pointer justifications detected
on a particular path on an incoming SDH signal.
HP-NPJC-Pdet High-Order Negative Pointer Justification Count, Path Detected
(HP-NPJC-Pdet) is a count of the negative pointer justifications detected
on a particular path on an incoming SDH signal.
HP-PPJC-Pgen High-Order Positive Pointer Justification Count, Path Generated
(HP-PPJC-Pgen) is a count of the positive pointer justifications generated
for a particular path.
HP-NPJC-Pgen High-Order Negative Pointer Justification Count, Path Generated
(HP-NPJC-Pgen) is a count of the negative pointer justifications
generated for a particular path.
HP-PJCDiff High-Order Path Pointer Justification Count Difference (HP-PJCDiff) is
the absolute value of the difference between the total number of detected
pointer justification counts and the total number of generated pointer
justification counts. That is, HP-PJCDiff is equal to
(HP-PPJC-PGen–HP-NPJC-PGen) – (HP-PPJC-PDet–HP-NPJC-PDet).