6TiSCH Autonomous Scheduling Function (ASF)
draft-duquennoy-6tisch-asf-00

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6TiSCH                                                 S. Duquennoy, Ed.
Internet-Draft                                                     Inria
Intended status: Standards Track                           X. Vilajosana
Expires: January 4, 2018                 Universitat Oberta de Catalunya
                                                             T. Watteyne
                                                                   Inria
                                                            July 3, 2017

              6TiSCH Autonomous Scheduling Function (ASF)
                     draft-duquennoy-6tisch-asf-00

Abstract

   This document defines a Scheduling Function called "ASF": the 6TiSCH
   Autoonomous Scheduling Function.  With ASF, nodes maintain their TSCH
   schedule based on local neighborhood knowledge, without any
   signaling.  Hashes of the nodes' MAC address are used to
   deterministically derive the [slotOffset,channelOffset] location of
   cells in the TSCH schedule.  The MAC, control, and application
   traffic planes are assigned to distinct slotframes, for isolation and
   flexible dimensioning.  This approach provides over-provisioned
   schedules with low maintenance, in pursuit for simplicity rather than
   optimality.

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.

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   This Internet-Draft will expire on January 4, 2018.

Duquennoy, et al.        Expires January 4, 2018                [Page 1]
Internet-Draft 6TiSCH Autonomous Scheduling Function (ASF)     July 2017

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Table of Contents

   1.  TEMPORARY EDITORIAL NOTES . . . . . . . . . . . . . . . . . .   3
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Application Domains . . . . . . . . . . . . . . . . . . .   3
   3.  General Operation . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Types of Slotframes . . . . . . . . . . . . . . . . . . .   4
     3.2.  Cell Coordinates  . . . . . . . . . . . . . . . . . . . .   4
     3.3.  Slotframes Definition . . . . . . . . . . . . . . . . . .   5
   4.  Configuration . . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  Scheduling Function Identifier  . . . . . . . . . . . . . . .   6
   6.  Rules for Adding/Deleting Cells . . . . . . . . . . . . . . .   6
   7.  Rules for CellList  . . . . . . . . . . . . . . . . . . . . .   7
   8.  6P Timeout Value  . . . . . . . . . . . . . . . . . . . . . .   7
   9.  Rule for Ordering Cells . . . . . . . . . . . . . . . . . . .   7
   10. Meaning of the Metadata Field . . . . . . . . . . . . . . . .   7
   11. Node Behavior at Boot . . . . . . . . . . . . . . . . . . . .   8
   12. 6P Error Handling . . . . . . . . . . . . . . . . . . . . . .   8
   13. Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   14. Implementation Status . . . . . . . . . . . . . . . . . . . .   8
   15. Security Considerations . . . . . . . . . . . . . . . . . . .   9
   16. IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
     16.1.  6P Scheduling Function Identifiers 'ASF' . . . . . . . .   9
   17. References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
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