Routing for RPL Leaves
draft-ietf-roll-unaware-leaves-03

The information below is for an old version of the document
Document Type Active Internet-Draft (roll WG)
Authors Pascal Thubert  , Michael Richardson 
Last updated 2019-08-30 (latest revision 2019-07-04)
Replaces draft-thubert-roll-unaware-leaves
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Intended RFC status Proposed Standard
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ROLL                                                     P. Thubert, Ed.
Internet-Draft                                                     Cisco
Updates: 6550, 8505 (if approved)                          M. Richardson
Intended status: Standards Track                               Sandelman
Expires: March 2, 2020                                   August 30, 2019

                         Routing for RPL Leaves
                   draft-ietf-roll-unaware-leaves-03

Abstract

   This specification extends RFC6550 and RFC8505 to provide unicast and
   multicast routing services in a RPL domain to 6LNs that are plain
   hosts and do not participate to RPL.

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   This Internet-Draft will expire on March 2, 2020.

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   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Thubert & Richardson      Expires March 2, 2020                 [Page 1]
Internet-Draft           Routing for RPL Leaves              August 2019

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  BCP 14  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  References  . . . . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Glossary  . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  6LoWPAN Neighbor Discovery  . . . . . . . . . . . . . . . . .   6
   4.  Updating RFC 6550 . . . . . . . . . . . . . . . . . . . . . .   8
   5.  Updating RFC 8505 . . . . . . . . . . . . . . . . . . . . . .   9
   6.  6LN Requirements to be a RPL-Unware Leaf  . . . . . . . . . .   9
     6.1.  Support of 6LoWPAN ND . . . . . . . . . . . . . . . . . .   9
     6.2.  External Routes and RPL Artifacts . . . . . . . . . . . .  10
       6.2.1.  Support of the HbH Header . . . . . . . . . . . . . .  10
       6.2.2.  Support of the Routing Header . . . . . . . . . . . .  10
       6.2.3.  Support of IPv6 Encapsulation . . . . . . . . . . . .  11
   7.  Updated RPL Target option . . . . . . . . . . . . . . . . . .  11
   8.  Protocol Operations for Unicast Addresses . . . . . . . . . .  12
     8.1.  General Flow  . . . . . . . . . . . . . . . . . . . . . .  12
       8.1.1.  In RPL Non-Storing-Mode . . . . . . . . . . . . . . .  12
       8.1.2.  In RPL Storing-Mode . . . . . . . . . . . . . . . . .  14
     8.2.  Operation . . . . . . . . . . . . . . . . . . . . . . . .  15
       8.2.1.  By the 6LN  . . . . . . . . . . . . . . . . . . . . .  15
       8.2.2.  By the 6LR  . . . . . . . . . . . . . . . . . . . . .  16
       8.2.3.  By the RPL Root . . . . . . . . . . . . . . . . . . .  18
       8.2.4.  By the 6LBR . . . . . . . . . . . . . . . . . . . . .  19
   9.  Protocol Operations for Multicast Addresses . . . . . . . . .  20
   10. Implementation Status . . . . . . . . . . . . . . . . . . . .  22
   11. Security Considerations . . . . . . . . . . . . . . . . . . .  22
   12. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  22
     12.1.  RPL Target Option Flags  . . . . . . . . . . . . . . . .  22
     12.2.  New Subsubregistry for the Status values of the RPL DAO-
            ACK Message  . . . . . . . . . . . . . . . . . . . . . .  22
   13. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  23
   14. References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
     14.1.  Normative References . . . . . . . . . . . . . . . . . .  23
     14.2.  Informative References . . . . . . . . . . . . . . . . .  25
   Appendix A.  Example Compression  . . . . . . . . . . . . . . . .  26
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  27

1.  Introduction

   The design of Low Power and Lossy Networks (LLNs) is generally
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