CONTENTS

 1     Scope 
 2     References 
 3     Abbreviations   
 4     Layered model of performance for IP service       
 5     Generic IP service performance model     
        5.1     Network components        
        5.2     Exchange links and network sections          
        5.3     Measurement points and measurable sections         
        5.4     IP packet transfer reference events (IPREs)           
        5.5     IP packet transfer outcomes           
 6     IP packet transfer performance 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 – Secondary terminology for IP packet delay variation     
       II.1     Introduction           
       II.2     Definition of inter-packet delay variation     
       II.3     Definition of 1-point packet delay variation 
       II.4     Guidance on applying the different parameters         
Appendix III – Rate and throughput capacity related parameters     
      III.1     Definition of IP packet rate parameters       
      III.2     References for throughput parameters and measurements    
      III.3     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 service availability state (for test methodologies and test sets)     
       IV.2     Sampling estimation of IP service availability          
Appendix V – Material relevant to IP performance measurement methods     
Appendix VI – Background on IP service availability     
       VI.1     Introduction          
       VI.2     Background          
       VI.3     Definitions of the regions in Figure VI.1     
       VI.4     Summary  
Bibliography