RFC 3843 (rfc3843) - Page 1 of 16

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

Alternative Format: Original Text Document
Next >
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
Next >