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              
      Page
        A.3     Adaptation functions 
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 – Trail protection of OTS-O/OMS-O layers in support of media
layer protection     
     VIII.1     OxS-O trail protection sub-layer functions       
Appendix IX – Examples of compound adaptation functions without SM
monitoring     
Bibliography