Static Context Header Compression (SCHC) and fragmentation for LPWAN, application to UDP/IPv6
draft-ietf-lpwan-ipv6-static-context-hc-21
The information below is for an old version of the document | |||
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Document | Type | Active Internet-Draft (lpwan WG) | |
Authors | Ana Minaburo , Laurent Toutain , Carles Gomez , Dominique Barthel , Juan-Carlos Zúñiga | ||
Last updated | 2019-08-22 (latest revision 2019-07-23) | ||
Replaces | draft-toutain-lpwan-ipv6-static-context-hc | ||
Stream | IETF | ||
Intended RFC status | Proposed Standard | ||
Formats | pdf htmlized (tools) htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Pascal Thubert | ||
Shepherd write-up | Show (last changed 2018-06-29) | ||
IESG | IESG state | IESG Evaluation::Revised I-D Needed | |
Consensus Boilerplate | Yes | ||
Telechat date |
Needs a YES. Needs 3 more YES or NO OBJECTION positions to pass. |
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Responsible AD | Suresh Krishnan | ||
Send notices to | Dominique Barthel <dominique.barthel@orange.com>, Pascal Thubert <pthubert@cisco.com> | ||
IANA | IANA review state | IANA OK - No Actions Needed |
lpwan Working Group A. Minaburo Internet-Draft Acklio Intended status: Standards Track L. Toutain Expires: January 24, 2020 IMT-Atlantique C. Gomez Universitat Politecnica de Catalunya D. Barthel Orange Labs JC. Zuniga SIGFOX July 23, 2019 Static Context Header Compression (SCHC) and fragmentation for LPWAN, application to UDP/IPv6 draft-ietf-lpwan-ipv6-static-context-hc-21 Abstract This document defines the Static Context Header Compression (SCHC) framework, which provides both header compression and fragmentation functionalities. SCHC has been designed for Low Power Wide Area Networks (LPWAN). SCHC compression is based on a common static context stored in both the LPWAN device and the network side. This document defines a header compression mechanism and its application to compress IPv6/UDP headers. This document also specifies a fragmentation and reassembly mechanism that is used to support the IPv6 MTU requirement over the LPWAN technologies. Fragmentation is needed for IPv6 datagrams that, after SCHC compression or when such compression was not possible, still exceed the layer-2 maximum payload size. The SCHC header compression and fragmentation mechanisms are independent of the specific LPWAN technology over which they are used. This document defines generic functionalities and offers flexibility with regard to parameter settings and mechanism choices. This document standardizes the exchange over the LPWAN between two SCHC entities. Settings and choices specific to a technology or a product are expected to be grouped into profiles, which are specified in other documents. Data models for the context and profiles are out of scope. Minaburo, et al. Expires January 24, 2020 [Page 1] Internet-Draft LPWAN SCHC July 2019 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 https://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 January 24, 2020. Copyright Notice Copyright (c) 2019 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 (https://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. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Requirements Notation . . . . . . . . . . . . . . . . . . . . 5 3. LPWAN Architecture . . . . . . . . . . . . . . . . . . . . . 5 4. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 6 5. SCHC overview . . . . . . . . . . . . . . . . . . . . . . . . 8 5.1. SCHC Packet format . . . . . . . . . . . . . . . . . . . 10 5.2. Functional mapping . . . . . . . . . . . . . . . . . . . 10 6. Rule ID . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7. Compression/Decompression . . . . . . . . . . . . . . . . . . 12 7.1. SCHC C/D Rules . . . . . . . . . . . . . . . . . . . . . 12 7.2. Rule ID for SCHC C/D . . . . . . . . . . . . . . . . . . 14 7.3. Packet processing . . . . . . . . . . . . . . . . . . . . 15 7.4. Matching operators . . . . . . . . . . . . . . . . . . . 17 7.5. Compression Decompression Actions (CDA) . . . . . . . . . 17 Minaburo, et al. Expires January 24, 2020 [Page 2]Show full document text