CONTENTS

�1���� Scope
�2���� Normative references
�3���� Abbreviations
�4���� Layered model of performance for IP service
�5���� Generic IP service performance model
������� 5.1���� Network components
������� 5.2���� Circuit sections and network sections
������� 5.3���� Measurement points and measurable sections
������� 5.4���� IP packet transfer reference events (IPREs)
������� 5.5���� IP packet transfer outcomes
����������������� 5.5.1���� Global routing information and permissible output links
�������� ���������5.5.2���� Corresponding events
����������������� 5.5.3���� Notes about the definitions of successful, errored, lost and spurious packet outcomes
�6���� IP packet transfer performance parameters
������� 6.6���� Flow related parameters
�7���� IP service availability
������� 7.1���� IP service availability function
������� 7.2���� IP service availability parameters
Appendix I � IP packet routing considerations
Appendix II � Terminology related to IP packet delay variation
������ II.1���� End-to-end 2-point IP packet delay variation
������ II.2���� Using average delay as the basis for delay variation
������ II.3���� Interval-based limits on IP packet delay variation
������ II.4���� Quantile-based limits on IP packet delay variation
Appendix III � Flow and throughput capacity related parameters
����� III.1���� Definition of IP throughput parameters
����� III.2���� Measurements using throughput probes
��������������� III.2.1���� Destination limited source
��������������� III.2.2���� Throughput probe
����� ����������III.2.3���� Probe performance parameters
��������������� III.2.4���� Creating lower bounds on capacity currently available to applications
��������������� III.2.5���� Open issues
Appendix IV � Minimal test of IP service availability state and sampling� estimation of IP service availability parameters
������ IV.1���� Minimal test of IP the service availability state (for test methodologies and test sets)23
������ IV.2���� Sampling estimation of IP service availability
Appendix V � Material relevant to IP performance measurement methods
Appendix VI � Bibliography