A Framework for Computed Multicast Applied to SR-MPLS
draft-allan-pim-sr-mpls-multicast-framework-00

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PIM Working Group                                             Dave Allan 
Internet Draft                                                  Ericsson 
Intended status: Standards Track                           Jeff Tantsura         
Expires: December 1, 2018                                         Nuage 
                                                             Ian Duncan 
                                                                  Ciena 
                                                           June 1, 2018 
                                      

           A Framework for Computed Multicast Applied to SR-MPLS 
              draft-allan-pim-sr-mpls-multicast-framework-00 

Abstract 

   This document describes a multicast solution for SR-MPLS. It is 
   consistent with the Segment Routing architecture in that an IGP is 
   augmented to distribute information in addition to the link state. In 
   this solution it is multicast group membership information sufficient 
   to synchronize state in a given network domain. Computation is 
   employed to determine the topology of any loosely specified multicast 
   distribution tree.   

Status of this Memo 

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   This Internet-Draft will expire in December 1st, 2018. 

Copyright and License Notice 

 
Allan et al.,          Expires December 1, 2018                [Page 1] 
 

Internet-Draft   draft-allan-pim-sr-mpls-multicast-00         June 2018 
 

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Table of Contents 

   1. Introduction...................................................3 
   1.1. Authors......................................................3 
   1.2. Requirements Language........................................3 
   2. Changes from the last version..................................3 
   3. Conventions used in this document..............................4 
   3.1. Terminology..................................................4 
   4. Solution Overview..............................................5 
   4.1. Mapping source specific trees onto the segment routing 
   architecture......................................................6 
   4.2. Role of the Routing System...................................6 
   4.3. MDT Construction Requirements................................6 
   4.4. Simplification and Pruning - theory of operation.............7 
   5. Elements of Procedure..........................................7 
   5.1. Triggers for Computation.....................................7 
   5.2. FIB Determination............................................8 
   5.2.1. Information in the IGP.....................................8 
   5.2.2. Computation of individual segments.........................8 
   5.3. FIB Generation..............................................12 
   5.4. FIB installation............................................12 
   6. Related work..................................................13 
   6.1. IGP Extensions..............................................13 
   6.2. BGP Extensions..............................................13 
   7. Observations..................................................14 
   8. Acknowledgements..............................................14 
   9. Security Considerations.......................................14 
   10. IANA Considerations..........................................14 
   11. References...................................................14 
   11.1. Normative References.......................................14 
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