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RObust Header Compression (ROHC): A Compression Profile for IP (RFC3843)

IP.com Disclosure Number: IPCOM000029465D
Original Publication Date: 2004-Jun-01
Included in the Prior Art Database: 2004-Jun-30
Document File: 17 page(s) / 34K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

L-E. Jonsson: AUTHOR [+2]

Abstract

The original RObust Header Compression (ROHC) RFC (RFC 3095) defines a framework for header compression, along with compression protocols (profiles) for IP/UDP/RTP, IP/ESP (Encapsulating Security Payload), IP/UDP, and also a profile for uncompressed packet streams. However, no profile was defined for compression of IP only, which has been identified as a missing piece in RFC 3095. This document defines a ROHC compression profile for IP, similar to the IP/UDP profile defined by RFC 3095, but simplified to exclude UDP, and enhanced to compress IP header chains of arbitrary length.

This text was extracted from an ASCII text file.
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Network Working Group                                       L-E. Jonsson

Request for Comments: 3843                                  G. Pelletier

Category: Standards Track                                       Ericsson

                                                               June 2004

    RObust Header Compression (ROHC): A Compression Profile for IP

Status of this Memo

   This document specifies an Internet standards track protocol for the

   Internet community, and requests discussion and suggestions for

   improvements.  Please refer to the current edition of the "Internet

   Official Protocol Standards" (STD 1) for the standardization state

   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2004).

Abstract

   The original RObust Header Compression (ROHC) RFC (RFC 3095) defines

   a framework for header compression, along with compression protocols

   (profiles) for IP/UDP/RTP, IP/ESP (Encapsulating Security Payload),

   IP/UDP, and also a profile for uncompressed packet streams.  However,

   no profile was defined for compression of IP only, which has been

   identified as a missing piece in RFC 3095.  This document defines a

   ROHC compression profile for IP, similar to the IP/UDP profile

   defined by RFC 3095, but simplified to exclude UDP, and enhanced to

   compress IP header chains of arbitrary length.

   Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2

   2.  Terminology. . . . . . . . . . . . . . . . . . . . . . . . . .  2

   3.  ROHC IP Compression (Profile 0x0004) . . . . . . . . . . . . .  3

       3.1.  Static Chain Termination . . . . . . . . . . . . . . . .  3

       3.2.  Handling Multiple Levels of IP Headers . . . . . . . . .  3

       3.3.  Constant IP-ID . . . . . . . . . . . . . . . . . . . . .  4

       3.4.  Additional Mode Transition Logic . . . . . . . . . . . .  6

       3.5.  Initialization . . . . . . . . . . . . . . . . . . . . .  8

       3.6.  Packet Types . . . . . . . . . . . . . . . . . . . . . .  8

       3.7.  The CONTEXT_MEMORY Feedback Option . . . . . . . . . . . 10

   4.  Security Considerations. . . . . . . . . . . . . . . . . . . . 10

   5.  IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 10

   6.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 10

   7.  Normative References . . . . . . . . . . . . . . . . . . . . . 11

Jonsson & Pelletier         Standards Track                     [Page 1]

RFC 3843                 A ROHC Profile for IP                 June 2004

   Appendix A.  Detailed Procedures...