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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 8 Performance Monitoring
Performance Monitoring for Electrical Cards
8.5.5 DS3XM-6 Card Performance Monitoring Parameters
Figure 8-19 shows the signal types that support far-end PMs. Figure 8-20 shows where overhead bytes
detected on the ASICs produce performance monitoring parameters for the DS3XM-6 card.
Figure 8-19 Monitored signal types for the DS3XM-6 card
Table 8-20 Far-End CP-bit Path PMs for the DS3-12E and DS3N-12E Cards
Parameter Definition
DS3 CVCP-P
Code Violation (CVCP-PFE) 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-PFE) 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-PFE) is a count of one-second intervals
containing one or more far-end SEF/AIS defects.
DS3 SESCP-P
Severely Errored Second (SESCP-PFE) 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-PFE) is a count of one-second intervals
when the DS3 path becomes unavailable. A DS3 path becomes
unavailable when ten consecutive far-end CP-bit SESs occur. The ten
CP-bit SESs are included in unavailable time. Once unavailable, the DS3
path 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.
55312
ONS 15454
DS3XM OC48
Fiber
Near End
Muxed DS3 Signal
DS1 Path (DS1 XX) Far End PMs Not Supported
ONS 15454
DS3XMOC48
Far End
Muxed DS3 Signal
DS3 Path (DS3 XX) Far End PMs Supported
VT Path (XX-V) Far End PMs Supported
STS Path (STS XX-P) Far End PMs Not Supported