Cisco ONS 15454 SDH - Page 12

15-12
Cisco ONS 15454 SDH Reference Manual, R4.6
April 2008
Chapter 15 Performance Monitoring
15.4.3 DS3i-N-12 Card Performance Monitoring Parameters
Table 15-11 CP-Bit Framing DS-3 Path PM Parameters for the Near-End DS3i-N-12 Card
Parameter Definition
DS3 CVCP-P Code Violation Path (CVCP-P) is a count of CP-bit parity errors occurring
in the accumulation period.
DS3 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.
DS3 SESCP-P Severely Errored Seconds Path (SESCP-P) is a count of seconds
containing more than 44 CP-bit parity errors, one or more SEF defects, or
one or more AIS defects.
DS3 SASCP-P SEF/AIS Second (SASCP-P) is a count of one-second intervals containing
one or more near-end SEF/AIS defects.
DS3 UASCP-P Unavailable Second Path (UASCP-P) is a count of one-second intervals
when the DS-3 path is unavailable. A DS-3 path becomes unavailable
when ten consecutive SESCP-Ps occur. The ten SESCP-Ps are included in
unavailable time. After the DS-3 path becomes unavailable, it becomes
available when ten consecutive seconds with no SESCP-Ps occur. The ten
seconds with no SESCP-Ps are excluded from unavailable time.
Table 15-12 CP-Bit Path PM Parameters for the Far-End DS3i-N-12 Card
Parameter Definition
DS3 CVCP-P Code Violation (CVCP-P) is a parameter that is counted when the three
far-end block error (FEBE) bits in a M-frame are not all collectively set to
1.
DS3 ESCP-P Errored Second (ESCP-P) is a count of one-second intervals containing
one or more M-frames with the three FEBE bits not all collectively set to
1 or one or more far-end SEF/AIS defects.
DS3 SASCP-P SEF/AIS Second (SASCP-P) is a count of one-second intervals containing
one or more far-end SEF/AIS defects.
DS3 SESCP-P Severely Errored Second (SESCP-P) is a count of one-second intervals
containing one or more 44 M-frames with the three FEBE bits not all
collectively set to 1 or one or more far-end SEF/AIS defects.
DS3 UASCP-P Unavailable Second (UASCP-P) is a count of one-second intervals when
the DS-3 path becomes unavailable. A DS-3 path becomes unavailable
when ten consecutive far-end CP-bit SESs occur. The ten CP-bit SESs are
included in unavailable time. After the DS-3 path becomes unavailable, it
becomes available when ten consecutive seconds occur with no CP-bit
SESs. The ten seconds with no CP-bit SESs are excluded from unavailable
time.