Chapter 11 Performance Monitoring

Performance Monitoring Parameter Definitions

Table 11-2

Performance Monitoring Parameters (continued)

 

 

 

Parameter

 

Definition

 

 

 

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-ESR

 

Multiplex Section Errored Second Ratio (MS-ESR) is the ratio of errored

 

 

seconds to total seconds in available time during a fixed measurement

 

 

interval.

 

 

MS-NPJC-Pgen

Multiplex Section Negative Pointer Justification Count, Path Generated

 

 

(MS-NPJC-Pgen) is a count of the negative pointer justifications generated

 

 

for a particular path.

 

 

 

MS-PPJC-Pgen

 

Multiplex Section Positive Pointer Justification Count, Path Generated

 

 

(MS-PPJC-Pgen) is a count of the positive pointer justifications generated

 

 

for a particular path.

 

 

MS-PSC (1+1 protection)

In a 1+1 protection scheme for a working card, Multiplex Section

 

 

Protection Switching Count (MS-PSC) is a count of the number of times

 

 

service switches from a working card to a protection card plus the number

 

 

of times service switches back to the working card.

 

 

For a protection card, MS-PSC is a count of the number of times service

 

 

switches to a working card from a protection card plus the number of times

 

 

service switches back to the protection card.

 

 

MS-PSC1(MS-SPRing)

For a protect line in a two-fiber multiplex section-shared protection ring

 

 

(MS-SPRing), Multiplex Section Protection Switching Count (MS-PSC)

 

 

refers to the number of times a protection switch has occurred either to a

 

 

particular span’s line protection or away from a particular span’s line

 

 

protection. Therefore, if a protection switch occurs on a two-fiber

 

 

MS-SPRing, the MS-PSC of the protection span to which the traffic is

 

 

switched will increment, and when the switched traffic returns to its

 

 

original working span from the protect span, the MS-PSC of the protect

 

 

span will increment again.

 

 

 

MS-PSC-R1

 

In a four-fiber MS-SPRing, Multiplex Section Protection Switching

 

 

Count-Ring (MS-PSC-R) is a count of the number of times service

 

 

switches from a working line to a protection line plus the number of times

 

 

it switches back to a working line. A count is only incremented if ring

 

 

switching is used.

 

 

 

MS-PSC-S

 

In a four-fiber MS-SPRing, Multiplex Section Protection Switching

 

 

Count-Span (MS-PSC-S) is a count of the number of times service

 

 

switches from a working line to a protection line plus the number of times

 

 

it switches back to the working line. A count is only incremented if span

 

 

switching is used.

 

 

 

Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2

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Cisco Systems 15310-MA manual One or more errored blocks or at least one defect, Ms-Esr, Ms-Psc-S, 11-8

15310-MA specifications

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