1     Scope           
 2     References 
 3     Definitions 
        3.1     Terms defined elsewhere        
        3.2     Terms defined in this Recommendation            
 4     Abbreviations and acronyms              
 5     Conventions             
 6     Connection types    
 7     Resource element types and messages of peer protocol        
        7.1     Resource elements    
        7.2     Messages       
 8     Protocol behaviours              
        8.1     Joining phase 
        8.2     Service phase 
        8.3     Leaving phase               
Bibliography