Packet Delivery Deadline time in 6LoWPAN Routing Header
draft-ietf-6lo-deadline-time-02

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6lo                                                          Lijo Thomas
Internet-Draft                                                     C-DAC
Intended status: Standards Track                          S. Anamalamudi
Expires: March 4, 2019                                 SRM University-AP
                                                             S.V.R.Anand
                                                            Malati Hegde
                                             Indian Institute of Science
                                                              C. Perkins
                                                               Futurewei
                                                         August 31, 2018

        Packet Delivery Deadline time in 6LoWPAN Routing Header
                    draft-ietf-6lo-deadline-time-02

Abstract

   This document specifies a new type for the 6LoWPAN routing header
   containing the delivery deadline time for data packets.  The deadline
   time enables forwarding and scheduling decisions for time critical
   IoT M2M applications that need deterministic delay guarantees over
   constrained networks and operate within time-synchronized networks.

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 March 4, 2019.

Copyright Notice

   Copyright (c) 2018 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
   (https://trustee.ietf.org/license-info) in effect on the date of

Lijo Thomas, et al.       Expires March 4, 2019                 [Page 1]
Internet-Draft         6lo Delivery Deadline Time            August 2018

   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Deadline-6LoRHE . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Deadline-6LoRHE Format  . . . . . . . . . . . . . . . . . . .   5
   5.  Deadline-6LoRHE in Three Network Scenarios  . . . . . . . . .   7
     5.1.  Scenario 1: Endpoints in the same DODAG (N1)  . . . . . .   7
     5.2.  Scenario 2: Endpoints in Networks with Dissimilar L2
           Technologies. . . . . . . . . . . . . . . . . . . . . . .   8
     5.3.  Scenario 3: Packet transmission across different DODAGs
           (N1 to N2). . . . . . . . . . . . . . . . . . . . . . . .   9
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Appendix A.  Changes after draft-ietf-6lo-deadline-time-01  . . .  13
   Appendix B.  Changes between earlier versions . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

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
   scheduling decisions to meet the time bounds.

   The draft [I-D.ietf-roll-routing-dispatch] specifies the 6LoWPAN
   Routing Header (6LoRH), compression schemes for RPL routing (source
   routing) operation [RFC6554], header compression of RPL Packet
   Information [RFC6553], and IP-in-IP encapsulation.  This document