Depth-First Forwarding in Unreliable Networks (DFF)
draft-cardenas-dff-06

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Internet Engineering Task Force                          U. Herberg, Ed.
Internet-Draft                                               A. Cardenas
Intended status: Experimental                                    T. Iwao
Expires: December 28, 2012                                       Fujitsu
                                                                  M. Dow
                                                               Freescale
                                                             S. Cespedes
                                                 U. Icesi/U. of Waterloo
                                                           June 26, 2012

          Depth-First Forwarding in Unreliable Networks (DFF)
                         draft-cardenas-dff-06

Abstract

   This document specifies the "Depth-First Forwarding" (DFF) protocol
   for IPv6 networks, a data forwarding mechanism that can increase
   reliability of data delivery.  The protocol operates entirely on the
   forwarding plane, but may interact with the routing plane.  DFF
   forwards data packets using a mechanism similar to a "depth-first
   search" for the destination of a packet.  This document specifies the
   DFF mechanism both for IPv6 networks (as specified in RFC2460) and in
   addition also for LoWPAN "mesh-under" networks (as specified in
   RFC4944).

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on December 28, 2012.

Copyright Notice

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

Herberg, et al.         Expires December 28, 2012               [Page 1]
Internet-Draft                     DFF                         June 2012

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Motivation . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.2.  Protocol Dependencies  . . . . . . . . . . . . . . . . . .  5
   2.  Notation and Terminology . . . . . . . . . . . . . . . . . . .  5
     2.1.  Notation . . . . . . . . . . . . . . . . . . . . . . . . .  5
     2.2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  6
   3.  Applicability Statement  . . . . . . . . . . . . . . . . . . .  7
   4.  Protocol Overview and Functioning  . . . . . . . . . . . . . .  8
     4.1.  Information Base Overview  . . . . . . . . . . . . . . . .  8
     4.2.  Signaling Overview . . . . . . . . . . . . . . . . . . . .  8
   5.  Information Sets . . . . . . . . . . . . . . . . . . . . . . .  9
     5.1.  Candidate Neighbor List  . . . . . . . . . . . . . . . . .  9
     5.2.  Processed Set  . . . . . . . . . . . . . . . . . . . . . .  9
   6.  Packet Header Fields . . . . . . . . . . . . . . . . . . . . . 10
   7.  Protocol Parameters  . . . . . . . . . . . . . . . . . . . . . 11
   8.  Data Packet Generation and Processing  . . . . . . . . . . . . 11
     8.1.  Data Packet Generation . . . . . . . . . . . . . . . . . . 11
     8.2.  Data Packet Processing . . . . . . . . . . . . . . . . . . 12
   9.  Unsuccessful Packet Transmission . . . . . . . . . . . . . . . 14
   10. Determining the Next Hop for a Packet  . . . . . . . . . . . . 15
   11. Informing the Routing Protocol . . . . . . . . . . . . . . . . 16
   12. Sequence Numbers . . . . . . . . . . . . . . . . . . . . . . . 16
   13. Modes of Operation . . . . . . . . . . . . . . . . . . . . . . 17
     13.1. Route-Over . . . . . . . . . . . . . . . . . . . . . . . . 17
       13.1.1.  Mapping of IPv6 Terminology to DFF  . . . . . . . . . 17
       13.1.2.  Packet Format . . . . . . . . . . . . . . . . . . . . 17
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