Packet Delivery Deadline time in 6LoWPAN Routing Header
draft-ietf-6lo-deadline-time-04

Document Type Active Internet-Draft (6lo WG)
Last updated 2019-03-08
Stream IETF
Intended RFC status Proposed Standard
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Send notices to Samita Chakrabarti <samitac.ietf@gmail.com>, Shwetha Bhandari <shwethab@cisco.com>
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6lo                                                          Lijo Thomas
Internet-Draft                                                     C-DAC
Intended status: Standards Track                          S. Anamalamudi
Expires: September 9, 2019                             SRM University-AP
                                                             S.V.R.Anand
                                                            Malati Hegde
                                             Indian Institute of Science
                                                              C. Perkins
                                                               Futurewei
                                                           March 8, 2019

        Packet Delivery Deadline time in 6LoWPAN Routing Header
                    draft-ietf-6lo-deadline-time-04

Abstract

   This document specifies a new type for the 6LoWPAN routing header
   containing the deadline time for data packets, designed for use over
   constrained networks.  The deadline time enables forwarding and
   scheduling decisions for time critical IoT M2M applications that
   operate within time-synchronized networks that agree on the meaning
   of the time representations used for the deadline time values.

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
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   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 9, 2019.

Copyright Notice

   Copyright (c) 2019 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

Lijo Thomas, et al.     Expires September 9, 2019               [Page 1]
Internet-Draft         6lo Delivery Deadline Time             March 2019

   (https://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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  6LoRHE Generic Format . . . . . . . . . . . . . . . . . . . .   3
   4.  Deadline-6LoRHE . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Deadline-6LoRHE Format  . . . . . . . . . . . . . . . . . . .   6
   6.  Deadline-6LoRHE in Three Network Scenarios  . . . . . . . . .   7
     6.1.  Scenario 1: Endpoints in the same DODAG (N1)  . . . . . .   8
     6.2.  Scenario 2: Endpoints in Networks with Dissimilar L2
           Technologies. . . . . . . . . . . . . . . . . . . . . . .   9
     6.3.  Scenario 3: Packet transmission across different DODAGs
           (N1 to N2). . . . . . . . . . . . . . . . . . . . . . . .  10
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   8.  Synchronization Aspects . . . . . . . . . . . . . . . . . . .  12
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  13
     11.2.  Informative References . . . . . . . . . . . . . . . . .  15
   Appendix A.  Changes from revision 03 to revision 04  . . . . . .  16
   Appendix B.  Changes from revision 03 to revision 04  . . . . . .  16
   Appendix C.  Changes from revision 01 to revision 02  . . . . . .  17
   Appendix D.  Changes between earlier versions . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Introduction

   Low Power and Lossy Networks (LLNs) are likely to be deployed for
   real time industrial applications requiring end-to-end delay
   guarantees [I-D.ietf-detnet-use-cases].  A Deterministic Network
   ("detnet") typically requires some data packets to reach their
   receivers within strict time bounds.  Intermediate nodes use the
   deadline information to make appropriate packet forwarding and
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