CONTENTS

 1     Scope 
 2     References 
 3     Definitions  
 4     Abbreviations   
 5     Service definition and service reference model      
        5.1     Basic L1 service reference model and features        
        5.2     L1 service categories, L1 VPN reference model and definition        
 6     Service scenarios 
        6.1     Multi-service backbone     
        6.2     Carrier's carrier     
        6.3     L1 resource trading
        6.4     Inter-SP L1 VPN  
 7     Service requirements        
 8     Service architecture elements       
        8.1     C-plane and U-plane combinations
        8.2     Description of service examples based on C-plane and U-plane combination          
        8.3     L1VPN functional model  
 9     Security aspects
Annex A – Functions performed by the CE in a L1 VPN    
Appendix I – Relationship with L2/L3 VPNs    
        I.1        Multipoint connectivity for L3/L2 VPN and layer 1 VPN  
        I.2          C/U-planes for L3/L2 VPN and layer 1 VPN