IPv6 over Low-Power Wireless Personal Area Network (6LoWPAN) Paging Dispatch
RFC 8025
| Document | Type |
RFC - Proposed Standard
(November 2016; No errata)
Updates RFC 4944
|
|
|---|---|---|---|
| Last updated | 2016-11-30 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | james woodyatt | ||
| Shepherd write-up | Show (last changed 2016-08-02) | ||
| IESG | IESG state | RFC 8025 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Suresh Krishnan | ||
| Send notices to | "james woodyatt" <jhw@nestlabs.com>, aretana@cisco.com | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) P. Thubert, Ed.
Request for Comments: 8025 Cisco
Updates: 4944 R. Cragie
Category: Standards Track ARM
ISSN: 2070-1721 November 2016
IPv6 over Low-Power Wireless Personal Area
Network (6LoWPAN) Paging Dispatch
Abstract
This specification updates RFC 4944 to introduce a new context switch
mechanism for IPv6 over Low-Power Wireless Personal Area Network
(6LoWPAN) compression, expressed in terms of Pages and signaled by a
new Paging Dispatch.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc8025.
Copyright Notice
Copyright (c) 2016 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.
Thubert & Cragie Standards Track [Page 1]
RFC 8025 6LoWPAN Paging Dispatch November 2016
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Updating RFC 4944 . . . . . . . . . . . . . . . . . . . . . . 3
4. Page 1 Paging Dispatch . . . . . . . . . . . . . . . . . . . 4
5. Security Considerations . . . . . . . . . . . . . . . . . . . 5
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
6.1. Page Switch Dispatch Types . . . . . . . . . . . . . . . 5
6.2. New Column in Dispatch Type Registry . . . . . . . . . . 5
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.1. Normative References . . . . . . . . . . . . . . . . . . 7
7.2. Informative References . . . . . . . . . . . . . . . . . 7
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
The design of Low-Power and Lossy Networks (LLNs) is generally
focused on saving energy, which is often a very constrained resource.
Other constraints, such as memory capacity and duty cycle
restrictions on LLN devices, usually derive from that primary
concern. Energy is often available only from primary batteries that
are expected to last for years or is scavenged from the environment
in very limited amounts. Any protocol that is intended for use in
LLNs must be designed with a primary focus on saving energy, which is
a strict requirement.
Controlling the amount of data transmission is one possible means of
saving energy. In a number of LLN standards, the frame size is
limited to much smaller values than the IPv6 maximum transmission
unit (MTU) of 1280 bytes. In particular, an LLN that relies on the
classical Physical Layer (PHY) of IEEE 802.15.4 [IEEE.802.15.4] is
limited to 127 bytes per frame. The need to compress IPv6 packets
over IEEE 802.15.4 led to the 6LoWPAN Header Compression (6LoWPAN-HC)
[RFC6282] work.
As more and more protocols need to be compressed, the encoding
capabilities of the original dispatch defined in the 6LowPAN
adaptation-layer framework ([RFC4944] and [RFC6282]) becomes
saturated. This specification introduces a new context switch
mechanism for 6LoWPAN compression, expressed in terms of Pages and
signaled by a new Paging Dispatch mechanism.
Thubert & Cragie Standards Track [Page 2]
RFC 8025 6LoWPAN Paging Dispatch November 2016
Show full document text