1     Scope           
 2     References 
 3     Definitions  
        3.1     Terms defined elsewhere         
        3.2     Terms defined in this Recommendation             
 4     Abbreviations and acronyms              
 5     Conventions              
        5.1     ME group (MEG)           
        5.2     Traffic conditioning point (TrCP)             
        5.3     MEG level        
        5.4     OAM transparency       
        5.5     Representation of octets          
 6     OAM relationships  
        6.1     MEs, MEPs, MIPs and TrCPs relationship            
        6.2     MEs, MEGs and MEG level relationship               
        6.3     MEPs and MIPs configuration  
 7     OAM functions for fault management           
        7.1     Ethernet continuity check (ETH-CC)      
        7.2     Ethernet loopback (ETH-LB)     
        7.3     Ethernet link trace (ETH-LT)      
        7.4     Ethernet alarm indication signal (ETH-AIS)         
        7.5     Ethernet remote defect indication (ETH-RDI)   
        7.6     Ethernet locked signal (ETH-LCK)           
        7.7     Ethernet test signal (ETH-Test)               
        7.8     Ethernet automatic protection switching (ETH-APS)      
        7.9     Ethernet maintenance communication channel (ETH-MCC)       
       7.10     Ethernet experimental OAM (ETH-EXP)            
       7.11     Ethernet vendor-specific OAM (ETH-VSP)        
       7.12     Ethernet client signal fail (ETH-CSF)     
       7.13     Ethernet bandwidth notification (ETH-BN)       
       7.14     Ethernet expected defect function (ETH-ED)  
 8     OAM functions for performance monitoring               
        8.1     Frame loss measurement (ETH-LM)     
        8.2     Frame delay measurement (ETH-DM) 
        8.3     Throughput measurement       
        8.4     Synthetic loss measurement (ETH-SLM)             
 9     OAM PDU types       
        9.1     Common OAM information elements 
        9.2     CCM PDU         
        9.3     LBM PDU          
        9.4     LBR PDU            
        9.5     LTM PDU          
        9.6     LTR PDU            
        9.7     AIS PDU            
        9.8     LCK frame        
        9.9     TST PDU            
       9.10     APS PDU          
       9.11     MCC PDU        
       9.12     LMM PDU       
       9.13     LMR PDU         
       9.14     1DM PDU        
       9.15     DMM PDU      
       9.16     DMR PDU        
       9.17     EXM PDU        
       9.18     EXR PDU          
       9.19     VSM PDU        
       9.20     VSR PDU          
       9.21     Client signal fail (CSF) 
       9.22     SLM PDU         
       9.23     SLR PDU           
       9.24     1SL PDU           
       9.25     BNM PDU       
       9.26     EDM PDU        
10     OAM frame addresses         
       10.1     Multicast destination addresses           
       10.2     CCM  
       10.3     LBM   
       10.4     LBR    
       10.5     LTM   
       10.6     LTR     
       10.7     AIS     
       10.8     LCK    
       10.9     TST     
      10.10     APS  
      10.11     MCC 
      10.12     LMM                
      10.13     LMR 
      10.14     1DM 
      Page
      10.15     DMM               
      10.16     DMR 
      10.17     EXM 
      10.18     EXR   
      10.19     VSM 
      10.20     VSR  
      10.21     CSF   
      10.22     SLM  
      10.23     SLR   
      10.24     1SL    
      10.25     BNM                
      10.26     EDM 
11     OAM PDU validation and versioning              
       11.1     OAM PDU transmission            
       11.2     OAM PDU validation in reception         
       11.3     OAM PDU reception after validation   
Annex A – MEG ID format     
        A.1     ICC based MEG_ID format       
        A.2     Global MEG ID format based on CC and ICC      
Annex B – Ethernet link trace (ETH-LT) of [ITU-T Y.1731]  interoperability
considerations     
        B.1     Ethernet link trace (ETH-LT) as defined in [ITU-T Y.1731]             
        B.2     Interworking with [ITU-T Y.1731]           
Appendix I – Ethernet network scenarios     
        I.1     Shared MEG levels example     
        I.2     Independent MEG levels example         
Appendix II – Frame loss measurement     
       II.1     Simplified calculation for frame loss      
       II.2     Frame counter wrapping periodicity     
Appendix III – Network OAM interworking     
Appendix IV – Mismerge detection limitation     
Appendix V – Terminology alignment with [IEEE 802.1Q]     
Appendix VI – Examples showing accuracy for ETH-SLM measurement     
Appendix VII – ETH-LM and link aggregation     
Bibliography