Simplified Multicast Forwarding
draft-ietf-manet-smf-13

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Document Type Active Internet-Draft (manet WG)
Last updated 2012-03-01 (latest revision 2012-01-27)
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Intended RFC status Experimental
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Network Working Group                                  J. Macker, editor
Internet-Draft                                                       NRL
Intended status: Experimental                           January 27, 2012
Expires: July 30, 2012

                    Simplified Multicast Forwarding
                        draft-ietf-manet-smf-13

Abstract

   This document describes a Simplified Multicast Forwarding (SMF)
   mechanism that provides basic Internet Protocol (IP) multicast
   forwarding suitable for limited wireless mesh and mobile ad hoc
   network (MANET) use.  It is mainly applicable in situations where
   efficient flooding represents an acceptable engineering design trade-
   off.  It defines techniques for multicast duplicate packet detection
   (DPD), to be applied in the forwarding process, for both IPv4 and
   IPv6 protocol use.  This document also specifies optional mechanisms
   for using reduced relay sets to achieve more efficient multicast data
   distribution within a mesh topology as compared to classic flooding.
   Interactions with other protocols, such as use of information
   provided by concurrently running unicast routing protocols, or
   interaction with other multicast protocols, as well as multiple
   deployment approaches are also described.  Distributed algorithms for
   selecting reduced relay sets and related discussion are provided in
   the appendices.  Basic issues relating to the operation of multicast
   MANET border routers are discussed, but ongoing work remains in this
   area, and is beyond the scope of this document.

Status of this Memo

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Copyright Notice

Macker, editor            Expires July 30, 2012                 [Page 1]
Internet-Draft                     SMF                      January 2012

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Macker, editor            Expires July 30, 2012                 [Page 2]
Internet-Draft                     SMF                      January 2012

Table of Contents

   1.  Introduction and Scope . . . . . . . . . . . . . . . . . . . .  5
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Applicability Statement  . . . . . . . . . . . . . . . . . . .  6
   4.  Overview and Functioning . . . . . . . . . . . . . . . . . . .  7
   5.  SMF Packet Processing and Forwarding . . . . . . . . . . . . .  9
   6.  SMF Duplicate Packet Detection . . . . . . . . . . . . . . . . 11
     6.1.  IPv6 Duplicate Packet Detection  . . . . . . . . . . . . . 12
       6.1.1.  IPv6 SMF_DPD Header Option . . . . . . . . . . . . . . 12
       6.1.2.  IPv6 Identification-based DPD  . . . . . . . . . . . . 15
       6.1.3.  IPv6 Hash-based DPD  . . . . . . . . . . . . . . . . . 17
     6.2.  IPv4 Duplicate Packet Detection  . . . . . . . . . . . . . 18
       6.2.1.  IPv4 Identification-based DPD  . . . . . . . . . . . . 18
       6.2.2.  IPv4 Hash-based DPD  . . . . . . . . . . . . . . . . . 20
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