Root initiated routing state in RPL
draft-ietf-roll-dao-projection-12

Document Type Active Internet-Draft (roll WG)
Last updated 2020-09-21
Replaces draft-thubert-roll-dao-projection
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ROLL                                                     P. Thubert, Ed.
Internet-Draft                                             Cisco Systems
Updates: 6550 (if approved)                                  R.A. Jadhav
Intended status: Standards Track                             Huawei Tech
Expires: 25 March 2021                                       M. Gillmore
                                                                   Itron
                                                       21 September 2020

                  Root initiated routing state in RPL
                   draft-ietf-roll-dao-projection-12

Abstract

   This document enables a RPL Root to install and maintain Projected
   Routes within its DODAG, along a selected set of nodes that may or
   may not include self, for a chosen duration.  This potentially
   enables routes that are more optimized or resilient than those
   obtained with the classical distributed operation of RPL, either in
   terms of the size of a source-route header or in terms of path
   length, which impacts both the latency and the packet delivery ratio.

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 25 March 2021.

Copyright Notice

   Copyright (c) 2020 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 publication of this document.
   Please review these documents carefully, as they describe your rights

Thubert, et al.           Expires 25 March 2021                 [Page 1]
Internet-Draft               DAO Projection               September 2020

   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Requirements Language . . . . . . . . . . . . . . . . . .   5
     2.2.  Glossary  . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  Other Terms . . . . . . . . . . . . . . . . . . . . . . .   5
     2.4.  References  . . . . . . . . . . . . . . . . . . . . . . .   6
   3.  Updating RFC 6550 . . . . . . . . . . . . . . . . . . . . . .   6
   4.  Identifying a Path  . . . . . . . . . . . . . . . . . . . . .   7
   5.  New RPL Control Messages and Options  . . . . . . . . . . . .   8
     5.1.  New P-DAO Request Control Message . . . . . . . . . . . .   8
     5.2.  New PDR-ACK Control Message . . . . . . . . . . . . . . .   9
     5.3.  Route Projection Options  . . . . . . . . . . . . . . . .  10
     5.4.  Sibling Information Option  . . . . . . . . . . . . . . .  13
   6.  Projected DAO . . . . . . . . . . . . . . . . . . . . . . . .  14
     6.1.  Requesting a Track  . . . . . . . . . . . . . . . . . . .  16
     6.2.  Routing over a Track  . . . . . . . . . . . . . . . . . .  16
     6.3.  Non-Storing Mode Projected Route  . . . . . . . . . . . .  17
     6.4.  Storing-Mode Projected Route  . . . . . . . . . . . . . .  18
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  21
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  21
     8.1.  New RPL Control Codes . . . . . . . . . . . . . . . . . .  21
     8.2.  New RPL Control Message Options . . . . . . . . . . . . .  21
     8.3.  SubRegistry for the Projected DAO Request Flags . . . . .  22
     8.4.  SubRegistry for the PDR-ACK Flags . . . . . . . . . . . .  22
     8.5.  Subregistry for the PDR-ACK Acceptance Status Values  . .  22
     8.6.  Subregistry for the PDR-ACK Rejection Status Values . . .  23
     8.7.  SubRegistry for the Route Projection Options Flags  . . .  23
     8.8.  SubRegistry for the Sibling Information Option Flags  . .  24
     8.9.  Error in Projected Route ICMPv6 Code  . . . . . . . . . .  24
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  24
   10. Normative References  . . . . . . . . . . . . . . . . . . . .  24
   11. Informative References  . . . . . . . . . . . . . . . . . . .  25
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