CONTENTS

 1     Introduction
        1.1     Purpose
        1.2     Scope
        1.3     Application of the Recommendation
        1.4     Allocation of end-to-end performance
 2     References
 3     Abbreviations
 4     Definitions
 5     Availability performance objectives
        5.1     End-to-end objectives
        5.2     Apportionment of end-to-end objectives
                  5.2.1     Allocation to the national portion of the end-to-end path
                  5.2.2     Allocation to the international portion of the end-to-end path
Annex A - Examples of path topologies and end-to-end availability performance derivations
        A.1     Purpose
        A.2     Path topologies
        A.3     End-to-end Unavailability
                  A.3.1     Linear topology
                  A.3.2     Redundant topology
        A.4     End-to-end Outage Intensity
                  A.4.1     Linear topology
                  A.4.2     Redundant topology