IPv6 over Low-Power Wireless Personal Area Network (6LoWPAN) Routing Header
RFC 8138
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Type |
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RFC - Proposed Standard
(April 2017; Errata)
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Last updated |
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2018-06-24
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Replaces |
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draft-ietf-6lo-routing-dispatch
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Stream |
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IETF
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plain text
pdf
html
bibtex
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Reviews |
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Michael Richardson
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Shepherd write-up |
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Show
(last changed 2016-04-27)
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| IESG |
IESG state |
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RFC 8138 (Proposed Standard)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Alvaro Retana
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Send notices to |
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"Michael Richardson" <mcr+ietf@sandelman.ca>, aretana@cisco.com
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) P. Thubert, Ed.
Request for Comments: 8138 Cisco
Category: Standards Track C. Bormann
ISSN: 2070-1721 Uni Bremen TZI
L. Toutain
IMT Atlantique
R. Cragie
ARM
April 2017
IPv6 over Low-Power Wireless Personal Area Network (6LoWPAN)
Routing Header
Abstract
This specification introduces a new IPv6 over Low-Power Wireless
Personal Area Network (6LoWPAN) dispatch type for use in 6LoWPAN
route-over topologies, which initially covers the needs of Routing
Protocol for Low-Power and Lossy Networks (RPL) data packet
compression (RFC 6550). Using this dispatch type, this specification
defines a method to compress the RPL Option (RFC 6553) information
and Routing Header type 3 (RFC 6554), an efficient IP-in-IP
technique, and is extensible for more applications.
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/rfc8138.
Thubert, et al. Standards Track [Page 1]
RFC 8138 6LoWPAN Routing Header April 2017
Copyright Notice
Copyright (c) 2017 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, et al. Standards Track [Page 2]
RFC 8138 6LoWPAN Routing Header April 2017
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Using the Page Dispatch . . . . . . . . . . . . . . . . . . . 7
3.1. New Routing Header Dispatch (6LoRH) . . . . . . . . . . . 7
3.2. Placement of 6LoRH Headers . . . . . . . . . . . . . . . 8
3.2.1. Relative to Non-6LoRH Headers . . . . . . . . . . . . 8
3.2.2. Relative to Other 6LoRH Headers . . . . . . . . . . . 8
4. 6LoWPAN Routing Header General Format . . . . . . . . . . . . 9
4.1. Elective Format . . . . . . . . . . . . . . . . . . . . . 10
4.2. Critical Format . . . . . . . . . . . . . . . . . . . . . 10
4.3. Compressing Addresses . . . . . . . . . . . . . . . . . . 11
4.3.1. Coalescence . . . . . . . . . . . . . . . . . . . . . 11
4.3.2. DODAG Root Address Determination . . . . . . . . . . 12
5. The SRH-6LoRH Header . . . . . . . . . . . . . . . . . . . . 13
5.1. Encoding . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2. SRH-6LoRH General Operation . . . . . . . . . . . . . . . 14
5.2.1. Uncompressed SRH Operation . . . . . . . . . . . . . 14
5.2.2. 6LoRH-Compressed SRH Operation . . . . . . . . . . . 15
5.2.3. Inner LOWPAN_IPHC Compression . . . . . . . . . . . . 15
5.3. The Design Point of Popping Entries . . . . . . . . . . . 16
5.4. Compression Reference for SRH-6LoRH Header Entries . . . 17
5.5. Popping Headers . . . . . . . . . . . . . . . . . . . . . 18
5.6. Forwarding . . . . . . . . . . . . . . . . . . . . . . . 19
6. The RPL Packet Information 6LoRH (RPI-6LoRH) . . . . . . . . 19
6.1. Compressing the RPLInstanceID . . . . . . . . . . . . . . 21
6.2. Compressing the SenderRank . . . . . . . . . . . . . . . 21
6.3. The Overall RPI-6LoRH Encoding . . . . . . . . . . . . . 21
7. The IP-in-IP 6LoRH Header . . . . . . . . . . . . . . . . . . 24
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