Terminology for Constrained Node Networks
draft-ietf-lwig-terminology-01

The information below is for an old version of the document
Document Type Active Internet-Draft (lwig WG)
Last updated 2013-02-25
Replaces draft-bormann-lwig-terms
Stream IETF
Intended RFC status (None)
Formats plain text pdf html
Stream WG state WG Document
Document shepherd None
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
LWIG Working Group                                            C. Bormann
Internet-Draft                                   Universitaet Bremen TZI
Intended status: Informational                                  M. Ersue
Expires: August 29, 2013                          Nokia Siemens Networks
                                                       February 25, 2013

               Terminology for Constrained Node Networks
                     draft-ietf-lwig-terminology-01

Abstract

   The Internet Protocol Suite is increasingly used on small devices
   with severe constraints, creating constrained node networks.  This
   document provides a number of basic terms that have turned out to be
   useful in the standardization work for constrained environments.

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 http://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 August 29, 2013.

Copyright Notice

   Copyright (c) 2013 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
   (http://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 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.

Bormann & Ersue         Expires August 29, 2013                 [Page 1]
Internet-Draft              CNN terminology                February 2013

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Constrained Nodes . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Constrained Networks  . . . . . . . . . . . . . . . . . .   4
       2.2.1.  Challenged Networks . . . . . . . . . . . . . . . . .   5
     2.3.  Constrained Node Networks . . . . . . . . . . . . . . . .   5
       2.3.1.  LLN ("low-power lossy network") . . . . . . . . . . .   5
       2.3.2.  LoWPAN, 6LoWPAN . . . . . . . . . . . . . . . . . . .   6
   3.  Classes of Constrained Devices  . . . . . . . . . . . . . . .   6
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   6.  Informative References  . . . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   Small devices with limited CPU, memory, and power resources, so
   called constrained devices (aka.  sensor, smart object, or smart
   device) can constitute a network, becoming "constrained nodes" in
   that network.  Such a network may itself exhibit constraints, e.g.
   with unreliable or lossy channels, limited and unpredictable
   bandwidth, and a highly dynamic topology.

   Constrained devices might be in charge of gathering information in
   diverse settings including natural ecosystems, buildings, and
   factories and send the information to one or more server stations.
   Constrained devices may work under severe resource constraints such
   as limited battery and computing power, little memory and
   insufficient wireless bandwidth, and communication capabilities.
   Other entities on the network, e.g., a base station or controlling
   server, might have more computational and communication resources and
   can support the interaction between the constrained devices and
   applications in more traditional networks.

   Today diverse sizes of constrained devices with different resources
   and capabilities are becoming connected.  Mobile personal gadgets,
   building-automation devices, cellular phones, Machine-to-machine
   (M2M) devices, etc.  benefit from interacting with other "things" in
   the near or somewhere in the Internet.  With this, the Internet of
   Things (IoT) becomes a reality, built up out of uniquely identifiable
Show full document text