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     Layered model of performance for Ethernet service          
 7     Ethernet service performance model, reference events and outcomes        
        7.1     Network components        
       7.2      Links and network sections
       7.3      Measurement points and measurable sections         
       7.4      Ethernet frame transfer reference events (FREs)     
       7.5      Ethernet frame transfer outcomes   
       7.6      Frame qualifications           
 8     Ethernet frame transfer performance parameters   
       8.1      Point-to-point Ethernet frame transfer delay (FTD) 
        8.2     Point-to-multipoint Ethernet frame transfer delay     
       8.3      Ethernet frame error ratio (FER)    
       8.4      Ethernet frame loss ratio (FLR)      
       8.5      Spurious Ethernet frame rate          
       8.6      Frame rate-related parameters       
       8.7      Comparison with objectives (general calculation for all point-to-multipoint parameters)     
       8.8      Organization of parameters according to use case   
 9     Ethernet service availability           
       9.1      Severe errored second (SESETH)   
       9.2      Criteria for entry to and exit from unavailable state  
        9.3     Ethernet service availability parameters       
Annex A – Secondary terminology for assessing delay variation     
        A.1     Introduction          
        A.2     Definition of IP packet delay variation        
        A.3     Definition of inter-frame delay variation (IFDV) for Ethernet frame transfer 
        A.4     Summarizing IFDV performance   
        A.5     Areas for further study      
Appendix I – Implications of sampling large groups     
        I.1        Introduction         
        I.2        Performance at sample destinations          
Appendix II – Alternative parameters using the framework of this Recommendation     
       II.1     Introduction           
       II.2     Point-to-multipoint performance parameters
       II.3     Relationship to other standards       
Appendix III – Harmonizing terminology for frame delay and frame delay variation metrics     
      III.1     Introduction           
      III.2     Frame delay and frame delay variation        
      III.3     Inter-frame delay variation  
      III.4     Concatenation of inter-frame delay variation           
Appendix IV – Networking technologies making use of Ethernet     
Appendix V – OAM measurement considerations     
       V.1      Introduction          
        V.2     Loss performance based on counters         
Appendix VI – Mapping to Recommendation ITU-T G.8010 terms and conventions (and to those of other associated Recommendations)     
       VI.1     Introduction          
       VI.2     Mapping between Ethernet network performance and architecture Recommendations        
       VI.3     In-service measurement and applicability of performance and availability parameters          
Bibliography