IEEE 802.15.4 Information Element encapsulation of 6TiSCH Join and Enrollment Information
draft-ietf-6tisch-enrollment-enhanced-beacon-14
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.
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Please review these documents carefully, as they describe your rights
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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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