An Architecture for IPv6 over the TSCH mode of IEEE 802.15.4e
draft-ietf-6tisch-architecture-06
6TiSCH P. Thubert, Ed.
Internet-Draft Cisco
Intended status: Standards Track T. Watteyne
Expires: September 10, 2015 Linear Technology
R. Struik
Struik Security Consultancy
M. Richardson
SSW
March 9, 2015
An Architecture for IPv6 over the TSCH mode of IEEE 802.15.4e
draft-ietf-6tisch-architecture-06
Abstract
This document presents an architecture for an IPv6 Multi-Link subnet
that is composed of a high speed powered backbone and a number of
IEEE802.15.4e TSCH wireless networks attached and synchronized by
Backbone Routers. The TSCH schedule can be static or dynamic.
6TiSCH defines mechanisms to establish and maintain the routing and
scheduling operations in a centralized, distributed, or mixed
fashion.
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 http://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 September 10, 2015.
Copyright Notice
Copyright (c) 2015 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
Thubert, et al. Expires September 10, 2015 [Page 1]
Internet-Draft 6tisch-architecture March 2015
(http://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
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 . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Applications and Goals . . . . . . . . . . . . . . . . . . . 5
4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1. Components . . . . . . . . . . . . . . . . . . . . . . . 8
5.2. Dependencies . . . . . . . . . . . . . . . . . . . . . . 10
6. 6LoWPAN (and RPL) . . . . . . . . . . . . . . . . . . . . . . 10
6.1. RPL Leaf Support in 6LoWPAN ND . . . . . . . . . . . . . 12
6.2. registration Failures Due to Movement . . . . . . . . . . 12
6.3. Proxy registration . . . . . . . . . . . . . . . . . . . 13
6.4. Target Registration . . . . . . . . . . . . . . . . . . . 13
6.5. RPL root vs. 6LBR . . . . . . . . . . . . . . . . . . . . 14
6.6. Securing the Registration . . . . . . . . . . . . . . . . 14
7. Communication Paradigms and Interaction Models . . . . . . . 15
8. TSCH and 6top . . . . . . . . . . . . . . . . . . . . . . . . 16
8.1. 6top . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.2. 6top and RPL Objective Function operations . . . . . . . 16
8.3. Network Synchronization . . . . . . . . . . . . . . . . . 18
8.4. SlotFrames and Priorities . . . . . . . . . . . . . . . . 19
8.5. Distributing the reservation of cells . . . . . . . . . . 20
9. Schedule Management Mechanisms . . . . . . . . . . . . . . . 22
9.1. Static Scheduling . . . . . . . . . . . . . . . . . . . . 22
9.2. Neighbor-to-neighbor Scheduling . . . . . . . . . . . . . 22
9.3. remote Monitoring and Schedule Management . . . . . . . . 23
9.4. Hop-by-hop Scheduling . . . . . . . . . . . . . . . . . . 24
10. Forwarding Models . . . . . . . . . . . . . . . . . . . . . . 24
10.1. Track Forwarding . . . . . . . . . . . . . . . . . . . . 24
10.1.1. Transport Mode . . . . . . . . . . . . . . . . . . . 26
10.1.2. Tunnel Mode . . . . . . . . . . . . . . . . . . . . 26
10.1.3. Tunnel Metadata . . . . . . . . . . . . . . . . . . 27
Show full document text