An Architecture for IPv6 over the TSCH mode of IEEE IEEE802.15.4e
draft-thubert-6tisch-architecture-00

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6TiSCH                                                   P. Thubert, Ed.
Internet-Draft                                                     cisco
Intended status: Standards Track                            RA. Assimiti
Expires: April 11, 2014                                          Centero
                                                             T. Watteyne
                                       Linear Technology / Dust Networks
                                                        October 10, 2013

   An Architecture for IPv6 over the TSCH mode of IEEE IEEE802.15.4e
                  draft-thubert-6tisch-architecture-00

Abstract

   This document presents an architecture for an IPv6 multilink 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 11, 2014.

Copyright Notice

Thubert, Assimiti & WatteExpires April 11, 2014                 [Page 1]
Internet-Draft            6TiSCH-architecture               October 2013

   Copyright (c) 2013 IETF Trust and the persons identified as the
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   Please review these documents carefully, as they describe your rights
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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Applications and Goals . . . . . . . . . . . . . . . . . . . .  3
   4.  Overview and Scope . . . . . . . . . . . . . . . . . . . . . .  4
   5.  Centralized vs. Distributed Routing  . . . . . . . . . . . . .  7
   6.  Forwarding Models  . . . . . . . . . . . . . . . . . . . . . .  7
     6.1.  Track Forwarding . . . . . . . . . . . . . . . . . . . . .  7
       6.1.1.  Transport Mode . . . . . . . . . . . . . . . . . . . .  8
       6.1.2.  Tunnel Mode  . . . . . . . . . . . . . . . . . . . . .  8
       6.1.3.  Tunnel Metadata  . . . . . . . . . . . . . . . . . . .  9
     6.2.  Fragment Forwarding  . . . . . . . . . . . . . . . . . . . 10
     6.3.  IPv6 Forwarding  . . . . . . . . . . . . . . . . . . . . . 11
   7.  Functional Flows . . . . . . . . . . . . . . . . . . . . . . . 12
   8.  Network Synchronization  . . . . . . . . . . . . . . . . . . . 12
   9.  TSCH and 6top  . . . . . . . . . . . . . . . . . . . . . . . . 13
     9.1.  6top . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     9.2.  Slotframes and Priorities  . . . . . . . . . . . . . . . . 13
     9.3.  Centralized Flow Reservation . . . . . . . . . . . . . . . 13
     9.4.  Distributed Flow Reservation . . . . . . . . . . . . . . . 14
     9.5.  Packet Marking and Handling  . . . . . . . . . . . . . . . 14
   10. Monitoring and Management  . . . . . . . . . . . . . . . . . . 14
   11. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 15
   12. Security Considerations  . . . . . . . . . . . . . . . . . . . 15
   13. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 15
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