An Architecture for IPv6 over the TSCH mode of IEEE 802.15.4e
draft-ietf-6tisch-architecture-00

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Document Type Active Internet-Draft (6tisch WG)
Last updated 2013-11-21 (latest revision 2013-11-18)
Replaces draft-thubert-6tisch-architecture
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6TiSCH                                                   P. Thubert, Ed.
Internet-Draft                                                     Cisco
Intended status: Standards Track                             T. Watteyne
Expires: April 22, 2014                                Linear Technology
                                                            RA. Assimiti
                                                                 Centero
                                                       November 18, 2013

     An Architecture for IPv6 over the TSCH mode of IEEE 802.15.4e
                  draft-ietf-6tisch-architecture-00

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.  Route Computation may be achieved in a centralized
   fashion by a Path Computation Element, in a distributed fashion using
   the Routing Protocol for Low Power and Lossy Networks, or in a mixed
   mode.  The Backbone Routers perform proxy Neighbor Discovery
   operations over the backbone on behalf of the wireless device, so
   they can share a same subnet and appear to be connected to the same
   backbone as classical devices.

Requirements Language

   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 RFC
   2119 [RFC2119].

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 April 22, 2014.

Copyright Notice

Thubert, Watteyne & AssimExpires April 22, 2014                 [Page 1]
Internet-Draft            6TiSCH-architecture               October 2013

   Copyright (c) 2013 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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   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
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   provided without warranty as described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Applications and Goals . . . . . . . . . . . . . . . . . . . .  4
   4.  Overview and Scope . . . . . . . . . . . . . . . . . . . . . .  4
   5.  Communication Paradigms and Interaction Models . . . . . . . .  7
   6.  Forwarding Models  . . . . . . . . . . . . . . . . . . . . . .  8
     6.1.  Track Forwarding . . . . . . . . . . . . . . . . . . . . .  8
       6.1.1.  Transport Mode . . . . . . . . . . . . . . . . . . . .  9
       6.1.2.  Tunnel Mode  . . . . . . . . . . . . . . . . . . . . .  9
       6.1.3.  Tunnel Metadata  . . . . . . . . . . . . . . . . . . . 10
     6.2.  Fragment Forwarding  . . . . . . . . . . . . . . . . . . . 11
     6.3.  IPv6 Forwarding  . . . . . . . . . . . . . . . . . . . . . 12
   7.  TSCH and 6top  . . . . . . . . . . . . . . . . . . . . . . . . 12
     7.1.  6top . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
     7.2.  Network Synchronization  . . . . . . . . . . . . . . . . . 13
     7.3.  Slotframes and Priorities  . . . . . . . . . . . . . . . . 14
     7.4.  Packet Marking and Handling  . . . . . . . . . . . . . . . 14
   8.  Schedule Management Mechanisms . . . . . . . . . . . . . . . . 14
     8.1.  Minimal Static Scheduling  . . . . . . . . . . . . . . . . 14
     8.2.  Neighbor-to-Neighbor Scheduling  . . . . . . . . . . . . . 15
     8.3.  Remote Monitoring and Schedule Management  . . . . . . . . 15
     8.4.  Hop-by-hop Scheduling  . . . . . . . . . . . . . . . . . . 16
   9.  Centralized vs. Distributed Routing  . . . . . . . . . . . . . 16
   10. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 17
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