Depth-First Forwarding in Unreliable Networks
draft-cardenas-dff-04

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Internet Engineering Task Force                               U. Herberg
Internet-Draft                                               A. Cardenas
Intended status: Experimental                                    T. Iwao
Expires: September 3, 2012                                       Fujitsu
                                                                  M. Dow
                                                               Freescale
                                                             S. Cespedes
                                                 U. Icesi/U. of Waterloo
                                                           March 2, 2012

             Depth-First Forwarding in Unreliable Networks
                         draft-cardenas-dff-04

Abstract

   This document describes the Depth-First Forwarding (DFF) protocol for
   IPv6 networks based on the LoWPAN adaptation layer.  The protocol is
   a mesh-under data forwarding mechanism that increases reliability of
   data delivery.

   DFF forwards data frames using a network-wide "depth-first search"
   for the Final Destination of the frame.  DFF may be used in
   conjunction with a mesh-under routing protocol, which provides
   "hints" for DFF in which order to try to send the frame to the
   neighbors discovered by the neighborhood discovery mechanism.  In
   that case, DFF can be used as local repair mechanism.

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Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the

Herberg, et al.         Expires September 3, 2012               [Page 1]
Internet-Draft                     DFF                        March 2012

   document authors.  All rights reserved.

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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  . . . . . . . . . . . . . . . . . . .  6
   4.  Protocol Overview and Functioning  . . . . . . . . . . . . . .  7
   5.  Information Sets . . . . . . . . . . . . . . . . . . . . . . .  8
     5.1.  Neighbor List  . . . . . . . . . . . . . . . . . . . . . .  8
     5.2.  Processed Set  . . . . . . . . . . . . . . . . . . . . . .  8
   6.  Frame Buffering  . . . . . . . . . . . . . . . . . . . . . . .  9
   7.  Frame Format . . . . . . . . . . . . . . . . . . . . . . . . . 10
   8.  Protocol Parameters and Constants  . . . . . . . . . . . . . . 12
   9.  Data Frame Generation and Processing . . . . . . . . . . . . . 12
     9.1.  Data Frame Generation  . . . . . . . . . . . . . . . . . . 12
     9.2.  Data Frame Processing  . . . . . . . . . . . . . . . . . . 14
     9.3.  Border Gateway . . . . . . . . . . . . . . . . . . . . . . 16
   10. Unsuccessful Frame Transmission  . . . . . . . . . . . . . . . 17
     10.1. Example: Transmission Failure Detection by IEEE
           802.15.4 . . . . . . . . . . . . . . . . . . . . . . . . . 17
     10.2. Procedures upon a Transmission Failure . . . . . . . . . . 17
   11. Getting the Next Hop for a Frame . . . . . . . . . . . . . . . 18
   12. Poisoning  . . . . . . . . . . . . . . . . . . . . . . . . . . 19
   13. Route Repair Mechanism . . . . . . . . . . . . . . . . . . . . 19
   14. Sequence Numbers . . . . . . . . . . . . . . . . . . . . . . . 20
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