CONTENTS

 1     Introduction and Scope   
        1.1     Introduction          
        1.2     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       
 6     Availability objectives  
 7     Achievement of the performance objectives      
 8     Concatenating network sections and their QoS values   
        8.1     Introduction          
        8.2     Composing UNI-UNI values        
        8.3     Impairment accumulation procedures       
 9     Security    
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.3     Calculation examples      
Appendix V – Material relevant to IP performance measurement methods    
Appendix VI – Applicability of the Y.1221 transfer capabilities  and 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    
      VII.1     Example VoIP Calculations with Y.1541 Class 0 network performance
      VII.2     Example VoIP Calculations with Y.1541 Class 1 network performance
      VII.3     Speech quality calculations for Y.1541 hypothetical reference paths     
Appendix VIII – Effects of IP network performance on digital television transmission QoS    
     VIII.1     Introduction         
     VIII.2     Hypothetical Reference Endpoint (HRE) for high-bandwidth video signals       
     VIII.3     Service profiles and end-to-end packet performance requirements        
     VIII.4     Forward Error Correction (FEC)/Interleaving to improve UNI-UNI performance            
     VIII.5     Laboratory assessment of Forward Error Correction (FEC)/Interleaving effectiveness    
     VIII.6     Additional performance parameters        
Appendix IX – Effects of network QoS on end-to-end data transmission  performance using TCP    
       IX.1     Introduction         
       IX.2     Model of TCP performance        
       IX.3     TCP Hypothetical Reference Endpoint (HRE)    
       IX.4     Observations       
       IX.5     Summary of TCP capacity estimates       
BIBLIOGRAPHY