Multicast Considerations over IEEE 802 Wireless Media
draft-perkins-intarea-multicast-ieee802-03

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Internet Area                                                 C. Perkins
Internet-Draft                                                 Futurewei
Intended status: Informational                                D. Stanley
Expires: January 20, 2018                                            HPE
                                                               W. Kumari
                                                                  Google
                                                              JC. Zuniga
                                                                  SIGFOX
                                                           July 19, 2017

         Multicast Considerations over IEEE 802 Wireless Media
               draft-perkins-intarea-multicast-ieee802-03

Abstract

   Performance issues have been observed when multicast packet
   transmissions of IETF protocols are used over IEEE 802 wireless
   media.  Even though enhamcements for multicast transmissions have
   been designed at both IETF and IEEE 802, there seems to exist a
   disconnect between specifications, implementations and configuration
   choices.  This draft describes the different issues that have been
   observed, the multicast enhancement features that have been specified
   at IETF and IEEE 802 for wireless media, as well as the operational
   chioces that can be taken to improve the performace of the network.
   Finally, it provides some recommendations about the usage and
   combination of these features and operational choices.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on January 20, 2018.

Perkins, et al.         Expires January 20, 2018                [Page 1]
Internet-Draft      Multicast Over IEEE 802 Wireless           July 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Identified mulitcast issues . . . . . . . . . . . . . . . . .   4
     3.1.  Issues at Layer 2 and Below . . . . . . . . . . . . . . .   4
       3.1.1.  Multicast reliability . . . . . . . . . . . . . . . .   4
       3.1.2.  Lower Data Rate . . . . . . . . . . . . . . . . . . .   4
       3.1.3.  Power-save Effects on Multicast . . . . . . . . . . .   5
     3.2.  Issues at Layer 3 and Above . . . . . . . . . . . . . . .   5
       3.2.1.  IPv4 issues . . . . . . . . . . . . . . . . . . . . .   5
       3.2.2.  IPv6 issues . . . . . . . . . . . . . . . . . . . . .   5
       3.2.3.  MLD issues  . . . . . . . . . . . . . . . . . . . . .   6
       3.2.4.  Spurious Neighbor Discovery . . . . . . . . . . . . .   6
   4.  Multicast protocol optimizations  . . . . . . . . . . . . . .   7
     4.1.  Proxy ARP in 802.11-2012  . . . . . . . . . . . . . . . .   7
     4.2.  IPv6 Address Registration and Proxy Neighbor Discovery  .   8
     4.3.  Buffering to improve Power-Save . . . . . . . . . . . . .   9
     4.4.  IPv6 support in 802.11-2012 . . . . . . . . . . . . . . .  10
     4.5.  Conversion of multicast to unicast  . . . . . . . . . . .  10
     4.6.  Directed Multicast Service (DMS)  . . . . . . . . . . . .  10
     4.7.  GroupCast with Retries (GCR)  . . . . . . . . . . . . . .  11
   5.  Operational optimizations . . . . . . . . . . . . . . . . . .  11
     5.1.  Mitigating Problems from Spurious Neighbor Discovery  . .  12
   6.  Multicast Considerations for Other Wireless Media . . . . . .  14
   7.  Recommendations . . . . . . . . . . . . . . . . . . . . . . .  14
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