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