1 General
1.1 Convention
1.2 Definition of the international portion
2
Reference models
2.1 Path Core Elements
2.2 Hypothetical reference performance model for international 64
kbit/s paths
2.3 Hypothetical reference performance model for international
primary and higher order paths
3
Performance objectives
3.1 64 kbit/s rate
3.2 Primary rate and higher bit rates
4
Allocation principles
5
Evaluation of error performance parameters
5.1 Scope
5.2 Evaluation of ES/SES parameters from in-service measurements
5.3 Evaluation of ES/SES parameters from out-of-service
measurements
6
Performance limits
6.1 General
6.2 Performance limits for bringing-into-service
6.3 Performance limits for maintenance
6.4 Long-term quality monitoring/measurement
7
Effects of timing impairments on error performance
8
Availability at 64 kbit/s layer and higher bit rate
8.1 Definitions of available and unavailable states
8.2 Consequences for error maintenance measurements
8.3 Inhibiting performance monitoring during unavailable time
8.4 Unavailability limits
Annex A – Example applications of RPO allocation from Tables 2a and 2b
Annex B – In-service ES and SES parameter evaluation criteria
Annex C – Values for bringing-into-service limits for international digital
paths
Annex D
References