Table of Contents

 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