Exploiting Packet Replication and Elimination in Complex Tracks in LLNs
draft-papadopoulos-raw-pareo-reqs-00

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Last updated 2019-06-21 (latest revision 2019-06-20)
Replaces draft-papadopoulos-6tisch-pre-reqs
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RAW                                                 G. Papadopoulos, Ed.
Internet-Draft                                           R. Koutsiamanis
Intended status: Standards Track                            N. Montavont
Expires: December 22, 2019                                IMT Atlantique
                                                              P. Thubert
                                                                   Cisco
                                                           June 20, 2019

Exploiting Packet Replication and Elimination in Complex Tracks in LLNs
                  draft-papadopoulos-raw-pareo-reqs-00

Abstract

   The Packet Replication and Elimination (PRE) mechanism duplicates
   data packets into several paths in the network to increase
   reliability and provide low jitter.  PRE may be used to complement
   layer-2 Automatic Repeat reQuest (ARQ) and receiver-end Ordering to
   form the PAREO functions.  Over a wireless medium, this technique can
   take advantage of communication Overhearing, when parallel
   transmissions over two adjacent paths are scheduled.  This document
   presents the concept and details the required changes to the current
   specifications that will be necessary to enable the PAREO functions.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   This Internet-Draft will expire on December 22, 2019.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents

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   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Tracks  . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Tracks Overview . . . . . . . . . . . . . . . . . . . . .   3
     3.2.  Complex Tracks  . . . . . . . . . . . . . . . . . . . . .   3
   4.  Packet Replication and Elimination principles . . . . . . . .   3
     4.1.  Packet Replication  . . . . . . . . . . . . . . . . . . .   4
     4.2.  Packet Elimination  . . . . . . . . . . . . . . . . . . .   5
     4.3.  Promiscuous Overhearing . . . . . . . . . . . . . . . . .   5
   5.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   6
     5.1.  Requirements Related to Alternative Parent Selection  . .   6
     5.2.  Requirements Related to Propagated Information  . . . . .   6
     5.3.  Requirements Related to Promiscuous Overhearing . . . . .   7
     5.4.  Requirements Related to Packet Elimination  . . . . . . .   8
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     8.1.  Informative references  . . . . . . . . . . . . . . . . .   8
     8.2.  Other Informative References  . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   This draft describes industrial use cases which require deterministic
   flows over wireless multi-hop paths.

   The RAW use cases explicitly do not propose any specific solution or
   design for the RAW architecture or protocols.  These are the subjects
   of other RAW drafts.  The RAW use cases are not considered to be
   concrete requirements by the RAW Working Group.

   The industrial use cases covered in this draft are professional
   audio, wireless for industrial applications and amusement parks.

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