RPL DAG Metric Container Node State and Attribute object type extension
draft-ietf-roll-nsa-extension-03

The information below is for an old version of the document
Document Type Active Internet-Draft (roll WG)
Last updated 2019-06-28 (latest revision 2019-06-24)
Replaces draft-koutsiamanis-roll-nsa-extension
Stream IETF
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state I-D Exists
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)
ROLL                                                R. Koutsiamanis, Ed.
Internet-Draft                                           G. Papadopoulos
Intended status: Standards Track                            N. Montavont
Expires: December 30, 2019                                IMT Atlantique
                                                              P. Thubert
                                                                   Cisco
                                                           June 28, 2019

RPL DAG Metric Container Node State and Attribute object type extension
                    draft-ietf-roll-nsa-extension-03

Abstract

   Implementing Packet Replication and Elimination from / to the RPL
   root requires the ability to forward copies of packets over different
   paths via different RPL parents.  Selecting the appropriate parents
   to achieve ultra-low latency and jitter requires information about a
   node's parents.  This document details what information needs to be
   transmitted and how it is encoded within a packet to enable this
   functionality.

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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on December 30, 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Koutsiamanis, et al.    Expires December 30, 2019               [Page 1]
Internet-Draft      RPL MC NSA object type extension           June 2019

   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Alternative Parent Selection  . . . . . . . . . . . . . . . .   4
     3.1.  Common Ancestor Strict  . . . . . . . . . . . . . . . . .   4
     3.2.  Common Ancestor Medium  . . . . . . . . . . . . . . . . .   5
     3.3.  Common Ancestor Relaxed . . . . . . . . . . . . . . . . .   6
     3.4.  Usage . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   4.  Node State and Attribute (NSA) object type extension  . . . .   6
     4.1.  Usage . . . . . . . . . . . . . . . . . . . . . . . . . .   9
     4.2.  Compression . . . . . . . . . . . . . . . . . . . . . . .   9
   5.  Controlling PRE . . . . . . . . . . . . . . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     8.1.  Informative references  . . . . . . . . . . . . . . . . .  10
     8.2.  Other Informative References  . . . . . . . . . . . . . .  11
   Appendix A.  Implementation Status  . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   Network-enabled applications in the industrial context must provide
   stringent guarantees in terms of reliability and predictability.  To
   achieve this they typically leverage 1+1 redundancy, also known as
   Packet Replication and Elimination (PRE)
   [I-D.papadopoulos-6tisch-pre-reqs].  Allowing these kinds of
   applications to function over wireless networks requires the
   application of the principles of Deterministic Networking
   [I-D.ietf-detnet-architecture].  This results in designs which aim at
   maximizing packet delivery rate and minimizing latency and jitter.
   Additionally, given that the network nodes often do not have an
   unlimited power supply, energy consumption needs to be minimized as
   well.

   As an example, to meet this goal, IEEE Std. 802.15.4
   [IEEE802154-2015] provides Time-Slotted Channel Hopping (TSCH), a
   mode of operation which uses a common communication schedule based on
   timeslots to allow deterministic medium access as well as channel
Show full document text