1 Scope
2 References
3 Terms and definitions
4 Abbreviations
5 Hypothetical reference model
6 Allocation principles for end-to-end VC connections
7 Performance objectives
8 Evaluation of error performance events
8.1 Evaluation of ES/BBE/SES events from in-service measurements
8.2 Out-of-Service (OOS) measurements
9 Performance limits – general considerations
9.1 Relationship between performance limits and objectives
9.2 Types of limits
10 Performance limits for bringing-into-service
10.1 Calculation of path performance objectives and limits
10.2 BIS limit values for paths
10.3 Calculation of multiplex sections performance objectives and limits
10.4 BIS limit values for multiplex sections
11 Performance limits for maintenance
11.1 Performance levels and limits
11.2 Performance limit thresholds
12 Long-term quality monitoring/measurement
13 Effects of timing impairments on error performance
14 Availability and unavailability
14.1 Criteria for entry/exit to/from the unavailable state
14.2 Consequences for error performance measurements
14.3 Inhibiting performance monitoring during unavailable time
14.4 Unavailability limits
Annex A – Example applications of
path allocation from Table 2a
Annex B – In-service ES, BBE and
SES event evaluation criteria
Annex C –Values for bringing-into-service limits for international digital paths
and multiplex sections, based on ITU-T Rec. G.826
Annex D –Values for bringing-into-service limits for international digital paths
and multiplex sections, based on ITU-T Rec. G.828
Annex E – Default unacceptable
performance level threshold values