CONTENTS

 1     Scope 
 2     References 
 3     Definitions  
 4     Abbreviations   
 5     Conventions     
 6     General reference model for FR/ATM service interworking          
 7     Metrics for characterizing FR/ATM service interworking performance      
        7.1     Data block delivered ratio/loss ratio           
        7.2     Data block transfer delay   
        7.3     Data block delay jitter        
 8     Formal relationships between frame level and ATM level performance and traffic parameters    
 9     Performance objectives    
Appendix I – Estimation of loss and transit delay in the case of  FR/ATM service interworking    
        I.1        Introduction         
        I.2        Estimation of end-to-end transit delay       
        I.3          Estimation of data block loss ratio