Terminology for Constrained Node Networks
draft-ietf-lwig-terminology-06
| The information below is for an old version of the document | |||
|---|---|---|---|
| Document | Type | Active Internet-Draft (lwig WG) | |
| Last updated | 2014-01-30 (latest revision 2013-12-18) | ||
| Replaces | draft-bormann-lwig-terms | ||
| Stream | IETF | ||
| Intended RFC status | Informational | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Zhen Cao | ||
| Shepherd write-up | Show (last changed 2013-05-19) | ||
| IESG | IESG state | IESG Evaluation::Revised I-D Needed | |
| Consensus Boilerplate | Unknown | ||
| Telechat date |
Has enough positions to pass. |
||
| Responsible AD | Brian Haberman | ||
| IESG note | Zhen Cao (caozhen@chinamobile.com) is the Document Shepherd. | ||
| Send notices to | lwig-chairs@tools.ietf.org, draft-ietf-lwig-terminology@tools.ietf.org | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | None | ||
LWIG Working Group C. Bormann
Internet-Draft Universitaet Bremen TZI
Intended status: Informational M. Ersue
Expires: June 21, 2014 Nokia Siemens Networks
A. Keranen
Ericsson
December 18, 2013
Terminology for Constrained Node Networks
draft-ietf-lwig-terminology-06
Abstract
The Internet Protocol Suite is increasingly used on small devices
with severe constraints on power, memory and processing resources,
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 node networks.
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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This Internet-Draft will expire on June 21, 2014.
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Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Bormann, et al. Expires June 21, 2014 [Page 1]
Internet-Draft CNN terminology December 2013
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Core Terminology . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Constrained Nodes . . . . . . . . . . . . . . . . . . . . 4
2.2. Constrained Networks . . . . . . . . . . . . . . . . . . 5
2.2.1. Challenged Networks . . . . . . . . . . . . . . . . . 6
2.3. Constrained Node Networks . . . . . . . . . . . . . . . . 6
2.3.1. LLN ("low-power lossy network") . . . . . . . . . . . 7
2.3.2. LoWPAN, 6LoWPAN . . . . . . . . . . . . . . . . . . . 7
3. Classes of Constrained Devices . . . . . . . . . . . . . . . 8
4. Power Terminology . . . . . . . . . . . . . . . . . . . . . . 10
4.1. Scaling Properties . . . . . . . . . . . . . . . . . . . 10
4.2. Classes of Energy Limitation . . . . . . . . . . . . . . 10
4.3. Strategies of Using Power for Communication . . . . . . . 11
5. Security Considerations . . . . . . . . . . . . . . . . . . . 14
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 14
8. Informative References . . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 16
1. Introduction
Small devices with limited CPU, memory, and power resources, so
called constrained devices (often used as a sensor/actuator, a smart
object, or a smart device) can form 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 sending the information to one or more server stations.
They also act on information, by performing some physical action,
including displaying it. Constrained devices may work under severe
resource constraints such as limited battery and computing power,
little memory, as well as insufficient wireless bandwidth and ability
to communicate; these constraints often exacerbate each other. Other
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