Using RPL Option Type, Routing Header for Source Routes and IPv6-in-IPv6 encapsulation in the RPL Data Plane
draft-ietf-roll-useofrplinfo-25

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ROLL Working Group                                             M. Robles
Internet-Draft                                                     Aalto
Updates: 6553, 6550, 8138 (if approved)                    M. Richardson
Intended status: Standards Track                                     SSW
Expires: September 12, 2019                                   P. Thubert
                                                                   Cisco
                                                          March 11, 2019

Using RPL Option Type, Routing Header for Source Routes and IPv6-in-IPv6
                  encapsulation in the RPL Data Plane
                    draft-ietf-roll-useofrplinfo-25

Abstract

   This document looks at different data flows through LLN (Low-Power
   and Lossy Networks) where RPL (IPv6 Routing Protocol for Low-Power
   and Lossy Networks) is used to establish routing.  The document
   enumerates the cases where RFC 6553 (RPL Option Type), RFC 6554
   (Routing Header for Source Routes) and IPv6-in-IPv6 encapsulation is
   required in data plane.  This analysis provides the basis on which to
   design efficient compression of these headers.  This document updates
   RFC 6553 adding a change to the RPL Option Type.  Additionally, this
   document updates RFC 6550 to indicate about this change and updates
   RFC8138 as well to consider the new Option Type when RPL Option is
   decompressed.

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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   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 12, 2019.

Robles, et al.         Expires September 12, 2019               [Page 1]
Internet-Draft               RPL-data-plane                   March 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
   (https://trustee.ietf.org/license-info) in effect on the date of
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Terminology and Requirements Language . . . . . . . . . . . .   4
   3.  Updates to RFC6553, RFC6550 and RFC 8138  . . . . . . . . . .   5
     3.1.  Updates to RFC 6553 . . . . . . . . . . . . . . . . . . .   5
     3.2.  Updates to RFC 8138 . . . . . . . . . . . . . . . . . . .   8
     3.3.  Updates to RFC 6550: Indicating the new RPI in the
           DODAG Configuration Option Flag.  . . . . . . . . . . . .   8
   4.  Sample/reference topology . . . . . . . . . . . . . . . . . .   9
   5.  Use cases . . . . . . . . . . . . . . . . . . . . . . . . . .  12
   6.  Storing mode  . . . . . . . . . . . . . . . . . . . . . . . .  15
     6.1.  Storing Mode: Interaction between Leaf and Root . . . . .  16
       6.1.1.  SM: Example of Flow from RPL-aware-leaf to root . . .  17
       6.1.2.  SM: Example of Flow from root to RPL-aware-leaf . . .  18
       6.1.3.  SM: Example of Flow from root to not-RPL-aware-leaf .  18
       6.1.4.  SM: Example of Flow from not-RPL-aware-leaf to root .  19
     6.2.  Storing Mode: Interaction between Leaf and Internet.  . .  20
       6.2.1.  SM: Example of Flow from RPL-aware-leaf to Internet .  20
       6.2.2.  SM: Example of Flow from Internet to RPL-aware-leaf .  21
       6.2.3.  SM: Example of Flow from not-RPL-aware-leaf to
               Internet  . . . . . . . . . . . . . . . . . . . . . .  22
       6.2.4.  SM: Example of Flow from Internet to non-RPL-aware-
               leaf. . . . . . . . . . . . . . . . . . . . . . . . .  23
     6.3.  Storing Mode: Interaction between Leaf and Leaf . . . . .  24
       6.3.1.  SM: Example of Flow from RPL-aware-leaf to RPL-aware-
               leaf  . . . . . . . . . . . . . . . . . . . . . . . .  24
       6.3.2.  SM: Example of Flow from RPL-aware-leaf to non-RPL-
               aware-leaf  . . . . . . . . . . . . . . . . . . . . .  26