Cisco ONS 15454 SDH Specifications download pdf (Page 330)

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

May 2002

Chapter 8 SDH Performance Monitoring

SDH Performance Monitoring for Electrical Cards

Table 8-12 DS3 Line PMs for the DS3i Card, Near-End

Parameter Definition

CV-L

Code Violation Line (CV-L) indicates the number of coding violations

occurring on the line. This parameter is a count of bipolar violations

(BPVs) and excessive zeros (EXZs) occurring over the accumulation

period.

ES-L

Errored Seconds Line (ES-L) is a count of the seconds containing one or

more anomalies (BPV + EXZ) and/or defects (i.e. loss of signal) on the

line.

SES-L

Severely Errored Seconds Line (SES-L) is a count of the seconds

containing more than a particular quantity of anomalies (BPV + EXZ >

44) and/or defects on the line.

LOSS-L

Line Loss of Signal (LOSS-L) is a count of one-second intervals

containing one or more LOS defects.

Table 8-13 C-Bit and M23 Framing DS3 Path PMs for the DS3i Card, Near-End

Parameter Definition

AISS-P

AIS Seconds Path (AISS-P) is a count of one-second intervals containing

one or more AIS defects.

CVP-P

Code Violation Path (CVP-P) is a code violation parameter for M23

applications. CVP-P is a count of P-bit parity errors occurring in the

accumulation period.

ESP-P

Errored Second Path (ESP-P) is a count of seconds containing one or more

P-bit parity errors, one or more SEF defects, or one or more AIS defects.

SASP-P

SEF/AIS Seconds Path (SASP-P) is a count of one-second intervals

containing one or more SEFs or one or more AIS defects on the path.

SESP-P

Severely Errored Seconds Path (SESP-P) is a count of seconds containing

more than 44 P-bit parity violations, one or more SEF defects, or one or

more AIS defects.

UASP-P

Unavailable Second Path (UASP-P) is a count of one-second intervals

when the DS3 path is unavailable. A DS3 path becomes unavailable when

ten consecutive SESP-Ps occur. The ten SESP-Ps are included in

unavailable time. Once unavailable, the DS3 path becomes available

when ten consecutive seconds with no SESP-Ps occur. The ten seconds

with no SESP-Ps are excluded from unavailable time.

Table 8-14 CP-Bit Framing DS3 Path PMs for the DS3i Card, Near-End

Parameter Definition

CVCP-P

Code Violation Path (CVCP-P) is a count of CP-bit parity errors occurring

in the accumulation period.

ESCP-P

Errored Second Path (ESCP-P) is a count of seconds containing one or

more CP-bit parity errors, one or more SEF defects, or one or more AIS

defects. ESCP-P is defined for the C-bit parity application.

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