1     Scope           
 2     References 
 3     Definitions 
 4     Abbreviations and acronyms              
 5     Conventions             
 6     Network reference model   
 7     Packet network limits            
        7.1     Network limits at reference points A and L       
        7.2     Network limit at reference point B       
        7.3     Network limits at reference point C     
        7.4     Network limit at reference point D      
Appendix I – Deployment scenarios for partial timing support networks     
        I.1                  APTS and PTS network use cases               
        I.2                  Full timing support network followed by an APTS
network or PTS network             
        I.3                  PTS
network followed by an FTS network               
        I.4                  APTS network followed by a PTS network              
        I.5                  APTS network followed by an FTS network           
        I.6                  Use of PTS network to bridge between two FTS
networks              
Appendix II – Considerations for handling precision time protocol traffic in
networks with partial timing support     
       II.1     Network aspects          
       II.2     Time error performance aspects            
Appendix III – The use of frequency to maintain precise time     
Appendix IV – Noise accumulation model in partially aware networks     
Bibliography