CONTENTS

 1     Scope 
 2     References 
 3     Terms and definitions       
 4     Abbreviations   
 5     Conventions     
 6     Discovery process overview        
 7     Discovery trigger process 
 8     Layer Adjacency Discovery (LAD)          
        8.1     Methods for layer adjacency discovery      
        8.2     Timescales for layer adjacency discovery   
 9     Transport entity capability exchange         
10     Requirements   
       10.1     Discovery agent    
       10.2     (T)CPs under the responsibility of a Discovery Agent        
       10.3     Discovery process instance           
       10.4     Discovery of a transport entity       
       10.5     Discovery of a unidirectional transport entity          
       10.6     Discovery of a bidirectional transport entity           
       10.7     Discovery of transport entity capabilities    
11     Discovery messages        
       11.1     LAD process        
       11.2     TCE process        
12     Discovery state machine descriptions       
       12.1     LAD state machine           
       12.2     TCE state machine
Appendix I – Discovery process state machines    
Appendix II – Mapping of TCE state machine to RFC 1661 LCP state machine    
Appendix III – Rationale for removal of CELA process