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Cisco ONS 15454 SDH Reference Manual, R4.6
April 2008
Chapter 15 Performance Monitoring
15.6.4 STM-16 and STM-64 Card Performance Monitoring Parameters
15.6.4 STM-16 and STM-64 Card Performance Monitoring Parameters
Figure 15-12 shows the signal types that support near-end and far-end PM parameters for the
STM16 SH AS 1310, STM16 LH AS 1550, STM16 EH 100 GHz, STM64 IO 1310, STM64 SH 1550,
STM64 LH 1550, and STM64 LH ITU 15xx.xx cards.
Figure 15-12 Monitored Signal Types for the STM-16 and STM-64 Cards
Note PM parameters on the protect VC4 are not supported for MS-SPRing.
Figure 15-13 shows where overhead bytes detected on the ASICs produce performance monitoring
parameters for the STM-16 and STM-64 cards
HP-SESR High-Order Path Severely Errored Second Ratio (HP-SESR) is the ratio
of SES to total seconds in available time during a fixed measurement
interval.
HP-BBER High-Order Path Background Block Error Ratio (HP-BBER) is the ratio
of BBE to total blocks in available time during a fixed measurement
interval. The count of total blocks excludes all blocks during SESs.
Table 15-38 High-Order VC4 and VC4-Xc Path PM Parameters for the Near-End STM-4
and STM4 SH 1310-4 Cards (continued)
Parameter Definition
71106
ONS 15454
SDH
E1 STM-N
Fiber
Near End
STM-N Signal
High-Order VC-4 and VC-4Xc Path PMs Supported for the Near-End
ONS 15454
SDH
E1STM-N
Far End
STM-N Signal