Cisco ONS 15327, User Documentation

Page: 282 / 559

8-28
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 8 Performance Monitoring
Performance Monitoring for Optical Cards
8.5.2 OC-12 Card Performance Monitoring Parameters
Figure 8-16 shows the signal types that support far-end PMs. Figure 8-17 shows where overhead bytes
detected on the ASICs produce performance monitoring parameters for the OC-12 card.
Figure 8-16 Monitored signal types for the OC-12 card
Note PMs on the protect STS are not supported for BLSR. The XX in the illustration above represents all PMs
listed below with the given prefix and/or suffix.
UAS-L
UAS-L is a count of the seconds when the line is unavailable at the far end.
A line becomes unavailable at the onset of ten consecutive seconds that
qualify as SES-LFEs, and continues to be unavailable until the onset of
ten consecutive seconds occur that do not qualify as SES-LFEs.
FC-L FC-L is a count of the number of far-end line failure events. A failure
event begins when RFI-L failure is declared, and it ends when the RFI-L
failure clears. A failure event that begins in one period and ends in another
period is counted only in the period where it began.
Table 8-16 Far-End Line Layer PMs for the OC-3 Card (continued)
Parameter Definition
ONS 15327
DS1 OC-N
Fiber
Near End
OC-N Signal
ONS 15327
DS1 OC-N
Far End
OC-N Signal
71731