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     Supervision 
        6.1     Alarm reporting control             
        6.2     Defects            
        6.3     Consequent actions     
        6.4     Defect correlations      
        6.5     Performance filters      
 7     Information flow across reference points       
 8     Generic processes    
        8.1     Blank clause    
        8.2     Alignment processes    
        8.3     Signal quality supervision           
        8.4     Blank clause    
        8.5     OTUk forward error correction (FEC) processing              
        8.6     Trail trace identifier (TTI) processing      
        8.7     Payload structure indication (PSI) acceptance processes 
        8.8     Status information (STAT) acceptance process   
        8.9     Generic AIS generation and detection   
       8.10     Generic layer fault processing 
       8.11     OTSi modulator and demodulator processes     
 9     OTS-O layer functions            
        9.1     Connection functions  
        9.2     Termination functions 
        9.3     Adaptation functions   
10     OMS-O layer functions         
       10.1     Connection functions 
       10.2     Termination functions               
       10.3     Adaptation functions  
       10.4     Sub-layer functions     
11     OSC (layer) functions             
       11.1     Connection functions 
       11.2     Termination functions               
       11.3     Adaptation functions  
12     OTSiA and OCh (layer) functions        
       12.1     Connection functions 
       12.2     Termination functions               
       12.3     Adaptation functions  
       12.4     Sub-layer functions     
13     OTU (layer) functions            
       13.1     Connection functions 
       13.2     Termination functions               
       13.3     Adaptation functions  
       13.4     Sub-layer functions     
14     ODU (layer) functions           
       14.1     Connection functions 
       14.2     Termination functions               
       14.3     Adaptation functions  
       14.4     COMMS functions       
       14.5     Sub-layer functions     
       14.6     Blank clause   
15     FlexO functions       
       15.1     Connection functions 
       15.2     Termination functions               
       15.3     Adaptation functions  
16     OTSi adaptation functions   
       16.1     OTSi to OTUk adaptation function (OTSi/OTUk_A)          
       16.2     OTSi to OTUkV adaptation function (OTSi/OTUkV_A)     
       16.3     OTSiG to OTUk adaptation function (OTSiG/OTUk_A)    
       16.4     OTSiG to OTUkV adaptation function (OTSiG/OTUkV_A)              
       16.5     OTSi to OTUCn adaptation function (OTSi/OTUCn_A)    
       16.6     OTSiG to OTUCn adaptation function (OTSiG/OTUCn_A)              
       16.7     OTSi to FlexO adaptation function (OTSiG/FlexO_A)       
       16.8     OTSiG to FlexO adaptation function (OTSiG/FlexO_A)    
       16.9     OTSi to OSC adaptation function (OTSi/OSC_A) 
17     Media element        
Annex A – Optical section (OSx) and constant bit rate (CBRx) layer
functions     
        A.1     Connection functions  
        A.2     Termination functions 
        A.3     Adaptation functions   
      Page
Annex B – Generic FlexE and FlexO supervision and processes     
        B.1     Supervision     
        B.2     Generic processes        
Appendix I – Applications and functional diagrams     
        I.1     Transparent CBRx tributary interface port with optional SDH RS
non-intrusive monitor on OTN equipment     
        I.2     SOTU tributary interface port on OTN equipment              
        I.3     Selectable CBRx/SOTU tributary interface port on OTN equipment             
        I.4     SOTU interface ports on non-OTN equipment     
        I.5     MOTUm interface port with 3-R regeneration functionality for an
ODUk connection function     
Appendix II – Blank appendix     
Appendix III – Performance of processes     
      III.1     Introduction    
      III.2     OTUk frame alignment process 
      III.3     STAT acceptance process and related defect detection   
      III.4     OTU dIAE, OTU dBDI, ODU dBDI detection          
      III.5     PT acceptance process and ODUPdPLM detection            
      III.6     Generic AIS and OTUk AIS detection       
      III.7     OTU and ODUT dBIAE detection process              
Appendix IV – TTI processing examples     
       IV.1     Example 1       
       IV.2     Example 2       
Appendix V – Blank appendix     
Appendix VI – OTSi client mapping of pre-OTN signals     
       VI.1     OTSi to CBRx adaptation (OTSi/CBRx_A)             
       VI.2     OTSi to GbE adaptation function (OTSi/GbE_A)  
       VI.3     OTSi to RSn adaptation (OTSi/RSn_A)    
Appendix VII – Examples of media elements     
Appendix VIII – OMS trail protection     
     VIII.1     OMS trail protection sub-layer functions            
Bibliography