1     Scope 
 2     References 
 3     Terms and definitions       
        3.1     Terms defined elsewhere    
        3.2     Terms defined in this Recommendation       
 4     Abbreviations and acronyms        
 5     Conventions     
 6     General architecture         
        6.1     Route query as used by RC federations      
        6.2     Route query interface         
        6.3     Path computation by a single or multiple RCs          
        6.4     Hierarchical relationship between communicating RCs        
        6.5     Discovery of a route query responder         
        6.6     Capability of a route query responder         
        6.7     Route request and response messages        
        6.8     Routing controllers and their adjacency       
        6.9     Communication channels for route query messages 
 7     Requirements    
        7.1     Architectural requirements  
        7.2     Discovery requirements      
        7.3     Protocol requirements        
Appendix I – Remote route query examples     
        I.1        Step by step remote route query   
        I.2        Simultaneous remote route query  
        I.3        Hierarchical remote route query    
        I.4          Hierarchical source routing using route query interface