When to use RFC 6553, 6554 and IPv6-in-IPv6
draft-ietf-roll-useofrplinfo-22

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ROLL Working Group                                             M. Robles
Internet-Draft                                                  Ericsson
Updates: 6553, 6550, 8138 (if approved)                    M. Richardson
Intended status: Standards Track                                     SSW
Expires: September 2, 2018                                    P. Thubert
                                                                   Cisco
                                                           March 1, 2018

              When to use RFC 6553, 6554 and IPv6-in-IPv6
                    draft-ietf-roll-useofrplinfo-22

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, RFC 6554 and IPv6-in-IPv6
   encapsulation is required.  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
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 2, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Robles, et al.          Expires September 2, 2018               [Page 1]
Internet-Draft                  Useof6553                     March 2018

   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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology and Requirements Language . . . . . . . . . . . .   4
     2.1.  hop-by-hop IPv6-in-IPv6 headers . . . . . . . . . . . . .   5
   3.  Updates to RFC6553, RFC6550 and RFC 8138  . . . . . . . . . .   5
     3.1.  Updates to RFC 6553 . . . . . . . . . . . . . . . . . . .   5
     3.2.  Updates to RFC 8138 . . . . . . . . . . . . . . . . . . .   7
     3.3.  Updates to RFC 6550: Indicating the new RPI in the DODAG
           Configuration Option Flag.  . . . . . . . . . . . . . . .   7
   4.  Sample/reference topology . . . . . . . . . . . . . . . . . .   8
   5.  Use cases . . . . . . . . . . . . . . . . . . . . . . . . . .  11
   6.  Storing mode  . . . . . . . . . . . . . . . . . . . . . . . .  13
     6.1.  Storing Mode: Interaction between Leaf and Root . . . . .  14
       6.1.1.  SM: Example of Flow from RPL-aware-leaf to root . . .  15
       6.1.2.  SM: Example of Flow from root to RPL-aware-leaf . . .  16
       6.1.3.  SM: Example of Flow from root to not-RPL-aware-leaf .  16
       6.1.4.  SM: Example of Flow from not-RPL-aware-leaf to root .  17
     6.2.  Storing Mode: Interaction between Leaf and Internet . . .  18
       6.2.1.  SM: Example of Flow from RPL-aware-leaf to Internet .  18
       6.2.2.  SM: Example of Flow from Internet to RPL-aware-leaf .  18
       6.2.3.  SM: Example of Flow from not-RPL-aware-leaf to
               Internet  . . . . . . . . . . . . . . . . . . . . . .  19
       6.2.4.  SM: Example of Flow from Internet to non-RPL-aware-
               leaf  . . . . . . . . . . . . . . . . . . . . . . . .  20
     6.3.  Storing Mode: Interaction between Leaf and Leaf . . . . .  21
       6.3.1.  SM: Example of Flow from RPL-aware-leaf to RPL-aware-
               leaf  . . . . . . . . . . . . . . . . . . . . . . . .  21
       6.3.2.  SM: Example of Flow from RPL-aware-leaf to non-RPL-
               aware-leaf  . . . . . . . . . . . . . . . . . . . . .  22
       6.3.3.  SM: Example of Flow from not-RPL-aware-leaf to RPL-
               aware-leaf  . . . . . . . . . . . . . . . . . . . . .  23