CONTENTS

 1     Scope
 2     References
 3     Abbreviations
 4     Transfer capacity, capacity agreements, and the applicability of QoS classes
 5     Network performance objectives
        5.1     General discussion of QoS
        5.2     Reference path for UNI to UNI QoS
        5.3     Network QoS classes
                  5.3.1     Nature of the network performance objectives
                  5.3.2     Evaluation intervals and reporting requirements
                  5.3.3     Packet size for evaluation
                  5.3.4     Unspecified (Unbounded) performance
                  5.3.5     Discussion of the IPTD objectives
                  5.3.6     Guidance on class usage
 6     Availability objectives
 7     Achievement of the performance objectives
Appendix I - ATM network QoS support of IP QoS
Appendix II - IP delay variation parameter definition considerations
Appendix III - Example hypothetical reference paths for validating the IP performance objectives
      III.1     Number IP nodes in the HRP
      III.2     Example computations to support end-end Class 0 and Class 1 delay
      III.3     Example end-end class 1 delay computation
      III.4     Example computations to support end-end class 4 delay
      III.5     Loading within the HRP
      III.6     Geostationary satellites within the HRP
Appendix IV - Example calculations of IP packet delay variation
       IV.1     Contributors to IP packet delay variation
       IV.2     Models and calculation procedures to establish an upper bound to the IPDV
                 IV.2.1     Delay variation due to routing look-up
                 IV.2.2     Delay variation due to variation-sensitive packets
                 IV.2.3     Delay variation due to a variation-insensitive packet
                 IV.2.4     Aggregated delay variation for variation-sensitive packets
       IV.3     Calculation examples
                 IV.3.1     Example with STM‑1 links
                 IV.3.2     Example with E3 interconnecting links
                 IV.3.3     Example with low rate access links
                 IV.3.4     Example summary and conclusions
Appendix V - Material relevant to IP performance measurement methods
Appendix VI - Applicability ofthe IETF differentiated services to IP QoS classes
Appendix VII - Effects of network QoS on end-to-end speech transmission  performance as perceived by the user
Appendix VIII - Bibliography
Appendix IX - Discussion of broadcast quality digital video on IP networks