IEEE 802.15.4 Information Element encapsulation of 6TiSCH Join and Enrollment Information
draft-ietf-6tisch-enrollment-enhanced-beacon-14

Document Type Active Internet-Draft (6tisch WG)
Last updated 2020-03-23 (latest revision 2020-02-21)
Replaces draft-richardson-6tisch-enrollment-enhanced-beacon
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6tisch Working Group                                          D. Dujovne
Internet-Draft                                Universidad Diego Portales
Intended status: Standards Track                           M. Richardson
Expires: 24 August 2020                         Sandelman Software Works
                                                        21 February 2020

   IEEE 802.15.4 Information Element encapsulation of 6TiSCH Join and
                         Enrollment Information
            draft-ietf-6tisch-enrollment-enhanced-beacon-14

Abstract

   In TSCH mode of IEEE STD 802.15.4, opportunities for broadcasts are
   limited to specific times and specific channels.  Routers in a Time-
   Slotted Channel Hopping (TSCH) network transmit Enhanced Beacon (EB)
   frames to announce the presence of the network.  This document
   provides a mechanism by which additional information critical for new
   nodes (pledges) and long sleeping nodes may be carried within the
   Enhanced Beacon in order to conserve use of broadcast opportunities.

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
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   This Internet-Draft will expire on 24 August 2020.

Copyright Notice

   Copyright (c) 2020 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
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   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components

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   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
     1.1.  Use of BCP 14 Terminology . . . . . . . . . . . . . . . .   2
     1.2.  Layer-2 Synchronization . . . . . . . . . . . . . . . . .   3
     1.3.  Layer-3 synchronization: IPv6 Router Solicitations and
           Advertisements  . . . . . . . . . . . . . . . . . . . . .   3
     1.4.  Layer-2 Selection . . . . . . . . . . . . . . . . . . . .   4
   2.  Protocol Definition . . . . . . . . . . . . . . . . . . . . .   5
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   4.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .   9
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   [RFC7554] describes the use of the Time-Slotted Channel Hopping
   (TSCH) mode of [ieee802154].

   In TSCH mode of IEEE STD 802.15.4, opportunities for broadcasts are
   limited to specific times and specific channels.  Routers in a Time-
   Slotted Channel Hopping (TSCH) network transmit Enhanced Beacon (EB)
   frames during broadcast slots in order to announce the time and
   channel schedule.

   This document defines a new IETF Information Element (IE) subtype to
   place into the Enhanced Beacon (EB) to provide join and enrollment
   information to prospective pledges in a more efficient way.

   The following sub-sections explain the problem being solved, which
   justify carrying the join and enrollement information in the EB.

1.1.  Use of BCP 14 Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

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   Other terminology can be found in [I-D.ietf-6tisch-architecture] in
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