1    
Scope  
 2     References
 3     Terms and definitions      
 4     Abbreviations  
 5     Conventions     
 6     LCAS for virtual
concatenation   
        6.1     Methodology         
        6.2     Control packet       
        6.3     VCG capacity increase (Addition of member(s))  
        6.4     VCG capacity decrease: Member(s) temporary removed by
the LCAS procedure (due to failure)     
        6.5     VCG capacity decrease: Removal (permanent) of
member(s)      
        6.6     LCAS to non-LCAS interworking
        6.7     Asymmetric connections   
        6.8     Symmetric connection       
Annex A – LCAS protocol    
        A.1     LCAS
protocol     
        A.2     LCAS protocol partitioning          
        A.3     State diagram of member(i) in the Virtual Concatenated
Group   
        A.4     Procedures state diagrams            
        A.5     State diagram for the VCG           
Appendix I
– LCAS Time Sequence Diagrams     
        I.1        Nomenclature      
        I.2        Numbering system           
        I.3        Provisioning        
        I.4        Commands           
Appendix II
– Non hit‑less bandwidth modifications during Hold Off periods     
       II.1     Introduction            
       II.2     Removal of a group member at Source      
       II.3     TSD conditions raised while performing ADD commands            
       II.4     Enhanced HO procedure