Cisco ONS 15454 SDH Specifications download pdf (Page 342)

8-38

Cisco ONS 15454 SDH Installation and Operations Guide, R3.3

May 2002

Chapter 8 SDH Performance Monitoring

SDH Performance Monitoring for Optical Cards

Table 8-28 Regenerator Section PMs for the STM-16 and STM-64 Card, Near-End and Far-End

Parameter Definition

RS-EB

Regenerator Section Errored Block (RS-EB) indicates one or more bits

are in error within a block.

RS-BBE

Regenerator Section Background Block Error (RS-BBE) is an errored

block not occurring as part of an SES.

RS-ES

Regenerator Section Errored Second (RS-ES) is a one-second period with

one or more errored blocks or at least one defect.

RS-SES

Regenerator Section Severely Errored Second (RS-SES) is a one-second

period which contains >

30% errored blocks or at least one defect. SES is

a subset of ES.

Table 8-29 Multiplex Section PMs for the STM-16 and STM-64 Card, Near-End and Far-End

Parameter Definition

MS-EB

Multiplex Section Errored Block (MS-EB) indicates 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 >

X% 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 8-30 Pointer Justification Count PMs for the STM-16 and STM-64 Cards, Near-End

Parameter Definition

Note On CTC, the count fields for MS-PPJC and MS-NPJC PMs appear white and blank unless they

are enabled on the Provisioning > Line tabs. For procedures, see the “Enable Pointer

Justification Count Performance Monitoring” procedure on page 8-17.

MS-PPJC-Pdet

Multiplex Section Positive Pointer Justification Count, Path Detected

(MS-PPJC-Pdet) is a count of the positive pointer justifications detected

on a particular path on an incoming SDH signal.

MS-NPJC-Pdet

Multiplex Section Negative Pointer Justification Count, Path Detected

(MS-NPJC-Pdet) is a count of the negative pointer justifications detected

on a particular path on an incoming SDH signal.

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