Table of Contents

 1     Scope          
 
2     References              
 
3     Definitions
        3.1     Terms defined elsewhere      
 
4     Abbreviations and acronyms           
 
5     Conventions            
 
6     OTN layer hierarchy, domains, topology and connections  
        6.1     Network overview     
        6.2     Layer networks           
        6.3     OTN OAM functions  
 
7     Operations, administration, maintenance and provisioning              
        7.1     OAM applications       
        7.2     TMN access   
        7.3     Timing function           
        7.4     Control plane access 
        7.5     Connection management       
 
8     Protection switching            
        8.1     Linear protection        
        8.2     Shared ring protection             
        8.3     Shared mesh protection         
 
9     Interface ports on optical transport network equipment   
        9.1     I-NNI
        9.2     E-NNI               
        9.3     UNI   
10     Basic OTN equipment types            
       10.1     3R regeneration compound function               
       10.2     OTN network termination unit (NTU)              
       10.3     Wavelength add/drop multiplexer (WADM)
       10.4     Wavelength cross connect (WXC)     
       10.5     Sub-wavelength cross connect (SWXC)          
       10.6     Optical amplifier        
       10.7     Sub-wavelength add/drop multiplexer (SWADM)     
11     OTN and packet transport network (PTN) hybrid equipment         
Appendix I – ODU multiplexing considerations    
Appendix II – Examples of SNC protection implementation    
       II.1     Analysis           
Appendix III – OTN link and connection examples    
Appendix IV – Multi-layer OTM-n network node interface    
Appendix V – Converged packet and optical transport equipment type