CONTENTS

 1     Introduction             
        1.1     Scope              
        1.2     Relationship to standards         
 2     Reference model and terminology    
        2.1     Definitions      
        2.2     Reference approach   
        2.3     Basic reference case   
        2.4     Inter-provider reference case  
        2.5     DSCP marking
        2.6     Routing           
        2.7     Measurement and management            
 3     Service class             
        3.1     Network service classes            
        3.2     Customer to provider interface (CPI) behaviour
        3.3     Network-to-network interface (NNI) behaviour
        3.4     Definitions of metrics 
        3.5     Class 0 service definition           
        3.6     Impairment budgets    
        3.7     Proposed allocation approach 
        3.8     Assessment reference model   
        3.9     Budget allocation        
       3.10     Admission management          
 4     QoS measurement  
        4.1     QoS measurement requirements           
        4.2     QoS measurement methodologies        
        4.3     QoS measurement protocols   
        4.4     Measurement considerations for VPN services 
        4.5     Recommended measurement approach             
        4.6     Performance measurement metrics      
        4.7     Reporting of measurement results        
        4.8     QoS measurement security considerations         
 5     Routing       
        5.1     Current BGP capabilities            
        5.2     BGP considerations     
        5.3     Routing recommendation         
 6     Securing QoS            
        6.1     Motivation     
        6.2     Areas which need to be secure
        6.3     Provisioning security   
        6.4     Service security            
        6.5     Security guidelines       
 7     Operational issues  
        7.1     Fault 
        7.2     Configuration and maintenance             
        7.3     Accounting     
        7.4     Performance  
 8     References
Appendix I – Examples of the application of budget allocations    
        I.1                 Case 1: Three core providers       
        I.2          Case 2: Transcontinental service, five core providers