CONTENTS

 1     Scope 
 2     References
 3     Terms and Definitions  
 4     Abbreviations and acronyms    
 5     Conventions   
 6     Assumptions  
 7     Applications  
        7.1     Overview of PNNI        
        7.2     Defect handling   
        7.3     Example signalling flows 
 8     Message functional definition and content      
        8.1     Messages for distributed connection management        
        8.2     Messages used with the global call reference     
 9     General message format and Information Element coding       
        9.1     Overview 
        9.2     Protocol discriminator    
        9.3     Call Reference    
        9.4     Message type and length 
        9.5     Variable length Information Elements    
10     Updated procedures    
       10.1     Link Connection Identifier allocation/selection  
       10.2     Connection clearing for non-persistent connections     
       10.3     Procedures for connections persistent across signalling failures
       10.4     Bearer Plane failures     
       10.5     Receipt of NOTIFY messages   
Annex A – Transport of G.7713.1/Y.1704.1 messages over DCN network    
        A.1     Introduction      
        A.2     Differences in boundary interfaces       
        A.3     Overview of SSCOPMCE link management process    
        A.4     Changes required to ITU-T Rec. Q.2931        
        A.5     Changes required to the SSCF (ITU-T Rec. Q.2130)   
        A.6     Applicability of SSCOPMCE specific parameters and timers  
        A.7     Layer management boundary    
        A.8     Link types        
Annex B – Graceful deletion    
        B.1     Introduction      
        B.2     Sending deletion notification     
        B.3     Receiving deletion notification   
        B.4     Receiving ready for deletion      
Annex C – DTL processing in the absence of routing protocols    
Annex D – ASON call identifier    
Appendix I – Mapping of G.7713/Y.1704 UNI attributes to Q.2931/PNNI    
Appendix II – Mapping of G.7713/Y.1704 E-NNI Attributes to Q.2931/PNNI    
Appendix III – Link connection scope    
      III.1     Scope of the link connection identifier   
      III.2     A link connection identifier association function