CCN Packet Adaptation to IEEE 802.15.4 Networks
draft-gundogan-icnrg-ccnlowpan-00

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ICN Research Group                                           C. Gundogan
Internet-Draft                                                T. Schmidt
Intended status: Experimental                                HAW Hamburg
Expires: March 26, 2018                                     M. Waehlisch
                                                    link-lab & FU Berlin
                                                               C. Scherb
                                                               C. Marxer
                                                             C. Tschudin
                                                     University of Basel
                                                      September 22, 2017

            CCN Packet Adaptation to IEEE 802.15.4 Networks
                   draft-gundogan-icnrg-ccnlowpan-00

Abstract

   Prevalent TLV-based CCN packet formats such as CCNx and NDN are
   designed to be generic and extensible.  This leads to header
   verbosity which is not acceptable in constrained environments where
   small-sized MTU link-layers like IEEE 802.15.4 are deployed.  This
   document presents an adaptation layer for IEEE 802.15.4 that reduces
   CCNx and NDN packet header sizes for an increased payload size.
   Further, a link fragmentation on this adaptation layer is described.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on March 26, 2018.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Gundogan, et al.         Expires March 26, 2018                 [Page 1]
Internet-Draft        CCN on IEEE 802.15.4 Networks       September 2017

   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  CCN-LoWPAN  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  TLV Compression . . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Name Compression  . . . . . . . . . . . . . . . . . . . .   6
     3.3.  Dispatch Page & Type  . . . . . . . . . . . . . . . . . .   7
     3.4.  CCN-LoWPAN Fragmentation  . . . . . . . . . . . . . . . .   8
     3.5.  CCN-LoWPAN NDN Format Specific Header . . . . . . . . . .   8
       3.5.1.  Interest  . . . . . . . . . . . . . . . . . . . . . .   8
       3.5.2.  Data  . . . . . . . . . . . . . . . . . . . . . . . .  10
     3.6.  CCN-LoWPAN CCNx Format Specific Header  . . . . . . . . .  12
       3.6.1.  Interest  . . . . . . . . . . . . . . . . . . . . . .  13
       3.6.2.  Data  . . . . . . . . . . . . . . . . . . . . . . . .  15
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   5.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     5.1.  Normative References  . . . . . . . . . . . . . . . . . .  16
     5.2.  Informative References  . . . . . . . . . . . . . . . . .  17
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Introduction

   This document decribes a method to reduce the header size of Content-
   centric Networking (CCN) packet formats like CCNx and the NDN (Named
   Data Networking) TLV [NDN][NDN-TLV].  This includes reducing the size
   of the TLV format as well as omitting optional TLVs by assuming sane
   default values.  The compression method is inspired by the 6LoWPAN
   concept [RFC4944][RFC6282], where an adaptation layer for IPv6 on
   IEEE 802.15.4 is provided.

   In the typical IoT scenario (Figure 1), embedded devices are
   interconnected via quasi-stationary infrastructure, where a border
   gateway router (BGR) sits at the junction of separate constrained
   LoWPAN networks and the Internet.  For CCN, Interest and Data
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