CONTENTS

1 Introduction and scope
2 References
3 Abbreviations
4 Availability function
5 Availability parameters
5.1 service availability definition
5.2 Definition of mean time between service outages
5.3 Values
5.4 Related parameters
Annex A Sampling estimation of availability parameters
A.1 Test of availability
A.2 Procedures for estimating service availability
A.3 Procedures for estimating mean time between service outages
A.4 SPRT methodology
Annex B Representative end-to-end availability performance
B.1 Definition of the example end-to-end connections
B.2 End-to-end availability performance for the Type 1 and Type 2 configuration examples